Vendor dependenciesvendor

Just testing how CI works with this. I tend to prefer vendoring, as it
means that if you have a copy of the code *you can always build it*.
Even if you're 20 years in the future

This is the output of

```
cargo vendor --versioned-dirs
```

25 files changed, 7930 insertions, 0 deletions

diff --git a/vendor/num-traits-0.2.14/.cargo-checksum.json b/vendor/num-traits-0.2.14/.cargo-checksum.json
new file mode 100644
index 00000000..01ee2a6f
--- /dev/null
+++ b/vendor/num-traits-0.2.14/.cargo-checksum.json
@@ -0,0 +1 @@
+{"files":{"Cargo.toml":"25ae881cd00d94ea9f9cb7844f32e3e58871fc9e45769ead9820d8d40c342ddb","LICENSE-APACHE":"a60eea817514531668d7e00765731449fe14d059d3249e0bc93b36de45f759f2","LICENSE-MIT":"6485b8ed310d3f0340bf1ad1f47645069ce4069dcc6bb46c7d5c6faf41de1fdb","README.md":"dd03422a366071c147d9dec73f01ba8299ccf963a0b038eb85520908d9cd028c","RELEASES.md":"8be8fef421245ea7d9e8a4ab89056307095bfbc9730ca175a75968e6d01b68e4","build.rs":"14cb861026b2493f7b39e0f72ced0ccb95c9a5fd0bdce3158f23a27dac7577e8","src/bounds.rs":"4fbc6bf3550e4da7ef55c9eb96466c6e0aee7f7542d7c85cfd742f16e3b4729f","src/cast.rs":"8c8384dcdfaf926b9331399d528278fc73851f8b5e1105dee343f4f19557e932","src/float.rs":"73cc27228e7578d537c00b9b46e124e365c569a53a7e160fe0d1ad1dacf54fc8","src/identities.rs":"5b6238ebd52e1fadd5b405bc40ad81e45346bcb1c4b46cf1f0496a30be7c9bc4","src/int.rs":"c6e042ac4614529f07b0009271a6b97378451d6d3998e1dc407e76f9a050aa2d","src/lib.rs":"5ff4c0694c7db0538fdca2eb8290ecca4a05e0357607dd4bd078b2b762241094","src/macros.rs":"b589a98c2468ca98131c641a058601964c4e82d75129b1c16fdc17aca8779eca","src/ops/checked.rs":"b6dfae21fe1a5ce41e92074c57d204284975ec56d45e63cac5f0136b8c3643b4","src/ops/inv.rs":"dd80b9bd48d815f17855a25842287942317fa49d1fdcdd655b61bd20ef927cda","src/ops/mod.rs":"fd33030d6e5bd50b9797112b63d14e49ce53a61dd9cc88205c942fa79cb18cf5","src/ops/mul_add.rs":"368bdebb40b16f3b4b85cf50235954268ff601ec7a458a3a83fe433f47f86f6d","src/ops/overflowing.rs":"1b92882a5a738ea4cafdb0971101dc438be9043f540e1246f58f7c9ecf6348dc","src/ops/saturating.rs":"6fb4b2a2c78d9202152a84586d7b068444b78d3caed4b293980832672a234d4b","src/ops/wrapping.rs":"0acf88c0e5fc81a3c6790b31986ab9be5b16c720c9e27461fe5d69b710ffcaba","src/pow.rs":"9f78cb9c4d5987b59e16f4141723a33ff689781cc352f357b0cc0111d22cde3a","src/real.rs":"b5115bb2cfb752a59426bb3fcbabf9cff15521a00a3f8b5ef4dfc0b0b31bb1f4","src/sign.rs":"83562caa3501c6873558eb64c9e3bfe25b4b20d38562a7aa7cc9adafcb3ff037","tests/cast.rs":"0a41785611b3909ecb4a88d6d5264a85564f6de8fbfc761436d3c8baafc8e3d0"},"package":"9a64b1ec5cda2586e284722486d802acf1f7dbdc623e2bfc57e65ca1cd099290"}
\ No newline at end of file
diff --git a/vendor/num-traits-0.2.14/Cargo.toml b/vendor/num-traits-0.2.14/Cargo.toml
new file mode 100644
index 00000000..685a784c
--- /dev/null
+++ b/vendor/num-traits-0.2.14/Cargo.toml
@@ -0,0 +1,38 @@
+# THIS FILE IS AUTOMATICALLY GENERATED BY CARGO
+#
+# When uploading crates to the registry Cargo will automatically
+# "normalize" Cargo.toml files for maximal compatibility
+# with all versions of Cargo and also rewrite `path` dependencies
+# to registry (e.g., crates.io) dependencies
+#
+# If you believe there's an error in this file please file an
+# issue against the rust-lang/cargo repository. If you're
+# editing this file be aware that the upstream Cargo.toml
+# will likely look very different (and much more reasonable)
+
+[package]
+name = "num-traits"
+version = "0.2.14"
+authors = ["The Rust Project Developers"]
+build = "build.rs"
+exclude = ["/bors.toml", "/ci/*", "/.github/*"]
+description = "Numeric traits for generic mathematics"
+homepage = "https://github.com/rust-num/num-traits"
+documentation = "https://docs.rs/num-traits"
+readme = "README.md"
+keywords = ["mathematics", "numerics"]
+categories = ["algorithms", "science", "no-std"]
+license = "MIT OR Apache-2.0"
+repository = "https://github.com/rust-num/num-traits"
+[package.metadata.docs.rs]
+features = ["std"]
+[dependencies.libm]
+version = "0.2.0"
+optional = true
+[build-dependencies.autocfg]
+version = "1"
+
+[features]
+default = ["std"]
+i128 = []
+std = []
diff --git a/vendor/num-traits-0.2.14/LICENSE-APACHE b/vendor/num-traits-0.2.14/LICENSE-APACHE
new file mode 100644
index 00000000..16fe87b0
--- /dev/null
+++ b/vendor/num-traits-0.2.14/LICENSE-APACHE
@@ -0,0 +1,201 @@
+                              Apache License
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+TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
+
+1. Definitions.
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diff --git a/vendor/num-traits-0.2.14/LICENSE-MIT b/vendor/num-traits-0.2.14/LICENSE-MIT
new file mode 100644
index 00000000..39d4bdb5
--- /dev/null
+++ b/vendor/num-traits-0.2.14/LICENSE-MIT
@@ -0,0 +1,25 @@
+Copyright (c) 2014 The Rust Project Developers
+
+Permission is hereby granted, free of charge, to any
+person obtaining a copy of this software and associated
+documentation files (the "Software"), to deal in the
+Software without restriction, including without
+limitation the rights to use, copy, modify, merge,
+publish, distribute, sublicense, and/or sell copies of
+the Software, and to permit persons to whom the Software
+is furnished to do so, subject to the following
+conditions:
+
+The above copyright notice and this permission notice
+shall be included in all copies or substantial portions
+of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF
+ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED
+TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A
+PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT
+SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
+CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR
+IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+DEALINGS IN THE SOFTWARE.
diff --git a/vendor/num-traits-0.2.14/README.md b/vendor/num-traits-0.2.14/README.md
new file mode 100644
index 00000000..1ee1e1e9
--- /dev/null
+++ b/vendor/num-traits-0.2.14/README.md
@@ -0,0 +1,69 @@
+# num-traits
+
+[![crate](https://img.shields.io/crates/v/num-traits.svg)](https://crates.io/crates/num-traits)
+[![documentation](https://docs.rs/num-traits/badge.svg)](https://docs.rs/num-traits)
+[![minimum rustc 1.8](https://img.shields.io/badge/rustc-1.8+-red.svg)](https://rust-lang.github.io/rfcs/2495-min-rust-version.html)
+[![build status](https://github.com/rust-num/num-traits/workflows/master/badge.svg)](https://github.com/rust-num/num-traits/actions)
+
+Numeric traits for generic mathematics in Rust.
+
+## Usage
+
+Add this to your `Cargo.toml`:
+
+```toml
+[dependencies]
+num-traits = "0.2"
+```
+
+and this to your crate root:
+
+```rust
+extern crate num_traits;
+```
+
+## Features
+
+This crate can be used without the standard library (`#![no_std]`) by disabling
+the default `std` feature. Use this in `Cargo.toml`:
+
+```toml
+[dependencies.num-traits]
+version = "0.2"
+default-features = false
+# features = ["libm"]    # <--- Uncomment if you wish to use `Float` and `Real` without `std`
+```
+
+The `Float` and `Real` traits are only available when either `std` or `libm` is enabled.  
+The `libm` feature is only available with Rust 1.31 and later ([see PR #99](https://github.com/rust-num/num-traits/pull/99)).
+
+The `FloatCore` trait is always available.  `MulAdd` and `MulAddAssign` for `f32`
+and `f64` also require `std` or `libm`, as do implementations of signed and floating-
+point exponents in `Pow`.
+
+Implementations for `i128` and `u128` are only available with Rust 1.26 and
+later.  The build script automatically detects this, but you can make it
+mandatory by enabling the `i128` crate feature.
+
+## Releases
+
+Release notes are available in [RELEASES.md](RELEASES.md).
+
+## Compatibility
+
+The `num-traits` crate is tested for rustc 1.8 and greater.
+
+## License
+
+Licensed under either of
+
+ * [Apache License, Version 2.0](http://www.apache.org/licenses/LICENSE-2.0)
+ * [MIT license](http://opensource.org/licenses/MIT)
+
+at your option.
+
+### Contribution
+
+Unless you explicitly state otherwise, any contribution intentionally submitted
+for inclusion in the work by you, as defined in the Apache-2.0 license, shall be
+dual licensed as above, without any additional terms or conditions.
diff --git a/vendor/num-traits-0.2.14/RELEASES.md b/vendor/num-traits-0.2.14/RELEASES.md
new file mode 100644
index 00000000..94449d69
--- /dev/null
+++ b/vendor/num-traits-0.2.14/RELEASES.md
@@ -0,0 +1,231 @@
+# Release 0.2.14 (2020-10-29)
+
+- Clarify the license specification as "MIT OR Apache-2.0".
+
+**Contributors**: @cuviper
+
+# Release 0.2.13 (2020-10-29)
+
+- [The new `OverflowingAdd`, `OverflowingSub`, and `OverflowingMul` traits][180]
+  return a tuple with the operation result and a `bool` indicating overflow.
+- [The "i128" feature now overrides compiler probes for that support][185].
+  This may fix scenarios where `autocfg` probing doesn't work properly.
+- [Casts from large `f64` values to `f32` now saturate to infinity][186]. They
+  previously returned `None` because that was once thought to be undefined
+  behavior, but [rust#15536] resolved that such casts are fine.
+- [`Num::from_str_radix` documents requirements for radix support][192], which
+  are now more relaxed than previously implied. It is suggested to accept at
+  least `2..=36` without panicking, but `Err` may be returned otherwise.
+
+**Contributors**: @cuviper, @Enet4, @KaczuH, @martin-t, @newpavlov
+
+[180]: https://github.com/rust-num/num-traits/pull/180
+[185]: https://github.com/rust-num/num-traits/pull/185
+[186]: https://github.com/rust-num/num-traits/pull/186
+[192]: https://github.com/rust-num/num-traits/issues/192
+[rust#15536]: https://github.com/rust-lang/rust/issues/15536
+
+# Release 0.2.12 (2020-06-11)
+
+- [The new `WrappingNeg` trait][153] will wrap the result if it exceeds the
+  boundary of the type, e.g. `i32::MIN.wrapping_neg() == i32::MIN`.
+- [The new `SaturatingAdd`, `SaturatingSub`, and `SaturatingMul` traits][165]
+  will saturate at the numeric bounds if the operation would overflow. These
+  soft-deprecate the existing `Saturating` trait that only has addition and
+  subtraction methods.
+- [Added new constants for logarithms, `FloatConst::{LOG10_2, LOG2_10}`][171].
+
+**Contributors**: @cuviper, @ocstl, @trepetti, @vallentin
+
+[153]: https://github.com/rust-num/num-traits/pull/153
+[165]: https://github.com/rust-num/num-traits/pull/165
+[171]: https://github.com/rust-num/num-traits/pull/171
+
+# Release 0.2.11 (2020-01-09)
+
+- [Added the full circle constant τ as `FloatConst::TAU`][145].
+- [Updated the `autocfg` build dependency to 1.0][148].
+
+**Contributors**: @cuviper, @m-ou-se
+
+[145]: https://github.com/rust-num/num-traits/pull/145
+[148]: https://github.com/rust-num/num-traits/pull/148
+
+# Release 0.2.10 (2019-11-22)
+
+- [Updated the `libm` dependency to 0.2][144].
+
+**Contributors**: @CryZe
+
+[144]: https://github.com/rust-num/num-traits/pull/144
+
+# Release 0.2.9 (2019-11-12)
+
+- [A new optional `libm` dependency][99] enables the `Float` and `Real` traits
+  in `no_std` builds.
+- [The new `clamp_min` and `clamp_max`][122] limit minimum and maximum values
+  while preserving input `NAN`s.
+- [Fixed a panic in floating point `from_str_radix` on invalid signs][126].
+- Miscellaneous documentation updates.
+
+**Contributors**: @cuviper, @dingelish, @HeroicKatora, @jturner314, @ocstl,
+@Shnatsel, @termoshtt, @waywardmonkeys, @yoanlcq
+
+[99]: https://github.com/rust-num/num-traits/pull/99
+[122]: https://github.com/rust-num/num-traits/pull/122
+[126]: https://github.com/rust-num/num-traits/pull/126
+
+# Release 0.2.8 (2019-05-21)
+
+- [Fixed feature detection on `no_std` targets][116].
+
+**Contributors**: @cuviper
+
+[116]: https://github.com/rust-num/num-traits/pull/116
+
+# Release 0.2.7 (2019-05-20)
+
+- [Documented when `CheckedShl` and `CheckedShr` return `None`][90].
+- [The new `Zero::set_zero` and `One::set_one`][104] will set values to their
+  identities in place, possibly optimized better than direct assignment.
+- [Documented general features and intentions of `PrimInt`][108].
+
+**Contributors**: @cuviper, @dvdhrm, @ignatenkobrain, @lcnr, @samueltardieu
+
+[90]: https://github.com/rust-num/num-traits/pull/90
+[104]: https://github.com/rust-num/num-traits/pull/104
+[108]: https://github.com/rust-num/num-traits/pull/108
+
+# Release 0.2.6 (2018-09-13)
+
+- [Documented that `pow(0, 0)` returns `1`][79].  Mathematically, this is not
+  strictly defined, but the current behavior is a pragmatic choice that has
+  precedent in Rust `core` for the primitives and in many other languages.
+- [The new `WrappingShl` and `WrappingShr` traits][81] will wrap the shift count
+  if it exceeds the bit size of the type.
+
+**Contributors**: @cuviper, @edmccard, @meltinglava
+
+[79]: https://github.com/rust-num/num-traits/pull/79
+[81]: https://github.com/rust-num/num-traits/pull/81
+
+# Release 0.2.5 (2018-06-20)
+
+- [Documentation for `mul_add` now clarifies that it's not always faster.][70]
+- [The default methods in `FromPrimitive` and `ToPrimitive` are more robust.][73]
+
+**Contributors**: @cuviper, @frewsxcv
+
+[70]: https://github.com/rust-num/num-traits/pull/70
+[73]: https://github.com/rust-num/num-traits/pull/73
+
+# Release 0.2.4 (2018-05-11)
+
+- [Support for 128-bit integers is now automatically detected and enabled.][69]
+  Setting the `i128` crate feature now causes the build script to panic if such
+  support is not detected.
+
+**Contributors**: @cuviper
+
+[69]: https://github.com/rust-num/num-traits/pull/69
+
+# Release 0.2.3 (2018-05-10)
+
+- [The new `CheckedNeg` and `CheckedRem` traits][63] perform checked `Neg` and
+  `Rem`, returning `Some(output)` or `None` on overflow.
+- [The `no_std` implementation of `FloatCore::to_degrees` for `f32`][61] now
+  uses a constant for greater accuracy, mirroring [rust#47919].  (With `std` it
+  just calls the inherent `f32::to_degrees` in the standard library.)
+- [The new `MulAdd` and `MulAddAssign` traits][59] perform a fused multiply-
+  add.  For integer types this is just a convenience, but for floating point
+  types this produces a more accurate result than the separate operations.
+- [All applicable traits are now implemented for 128-bit integers][60] starting
+  with Rust 1.26, enabled by the new `i128` crate feature.  The `FromPrimitive`
+  and `ToPrimitive` traits now also have corresponding 128-bit methods, which
+  default to converting via 64-bit integers for compatibility.
+
+**Contributors**: @cuviper, @LEXUGE, @regexident, @vks
+
+[59]: https://github.com/rust-num/num-traits/pull/59
+[60]: https://github.com/rust-num/num-traits/pull/60
+[61]: https://github.com/rust-num/num-traits/pull/61
+[63]: https://github.com/rust-num/num-traits/pull/63
+[rust#47919]: https://github.com/rust-lang/rust/pull/47919
+
+# Release 0.2.2 (2018-03-18)
+
+- [Casting from floating point to integers now returns `None` on overflow][52],
+  avoiding [rustc's undefined behavior][rust-10184]. This applies to the `cast`
+  function and the traits `NumCast`, `FromPrimitive`, and `ToPrimitive`.
+
+**Contributors**: @apopiak, @cuviper, @dbarella
+
+[52]: https://github.com/rust-num/num-traits/pull/52
+[rust-10184]: https://github.com/rust-lang/rust/issues/10184
+
+
+# Release 0.2.1 (2018-03-01)
+
+- [The new `FloatCore` trait][32] offers a subset of `Float` for `#![no_std]` use.
+  [This includes everything][41] except the transcendental functions and FMA.
+- [The new `Inv` trait][37] returns the multiplicative inverse, or reciprocal.
+- [The new `Pow` trait][37] performs exponentiation, much like the existing `pow`
+  function, but with generic exponent types.
+- [The new `One::is_one` method][39] tests if a value equals 1.  Implementers
+  should override this method if there's a more efficient way to check for 1,
+  rather than comparing with a temporary `one()`.
+
+**Contributors**: @clarcharr, @cuviper, @vks
+
+[32]: https://github.com/rust-num/num-traits/pull/32
+[37]: https://github.com/rust-num/num-traits/pull/37
+[39]: https://github.com/rust-num/num-traits/pull/39
+[41]: https://github.com/rust-num/num-traits/pull/41
+
+
+# Release 0.2.0 (2018-02-06)
+
+- **breaking change**: [There is now a `std` feature][30], enabled by default, along
+  with the implication that building *without* this feature makes this a
+  `#![no_std]` crate.
+  - The `Float` and `Real` traits are only available when `std` is enabled.
+  - Otherwise, the API is unchanged, and num-traits 0.1.43 now re-exports its
+    items from num-traits 0.2 for compatibility (the [semver-trick]).
+
+**Contributors**: @cuviper, @termoshtt, @vks
+
+[semver-trick]: https://github.com/dtolnay/semver-trick
+[30]: https://github.com/rust-num/num-traits/pull/30
+
+
+# Release 0.1.43 (2018-02-06)
+
+- All items are now [re-exported from num-traits 0.2][31] for compatibility.
+
+[31]: https://github.com/rust-num/num-traits/pull/31
+
+
+# Release 0.1.42 (2018-01-22)
+
+- [num-traits now has its own source repository][num-356] at [rust-num/num-traits][home].
+- [`ParseFloatError` now implements `Display`][22].
+- [The new `AsPrimitive` trait][17] implements generic casting with the `as` operator.
+- [The new `CheckedShl` and `CheckedShr` traits][21] implement generic
+  support for the `checked_shl` and `checked_shr` methods on primitive integers.
+- [The new `Real` trait][23] offers a subset of `Float` functionality that may be applicable to more
+  types, with a blanket implementation for all existing `T: Float` types.
+
+Thanks to @cuviper, @Enet4, @fabianschuiki, @svartalf, and @yoanlcq for their contributions!
+
+[home]: https://github.com/rust-num/num-traits
+[num-356]: https://github.com/rust-num/num/pull/356
+[17]: https://github.com/rust-num/num-traits/pull/17
+[21]: https://github.com/rust-num/num-traits/pull/21
+[22]: https://github.com/rust-num/num-traits/pull/22
+[23]: https://github.com/rust-num/num-traits/pull/23
+
+
+# Prior releases
+
+No prior release notes were kept.  Thanks all the same to the many
+contributors that have made this crate what it is!
diff --git a/vendor/num-traits-0.2.14/build.rs b/vendor/num-traits-0.2.14/build.rs
new file mode 100644
index 00000000..816ddadd
--- /dev/null
+++ b/vendor/num-traits-0.2.14/build.rs
@@ -0,0 +1,20 @@
+extern crate autocfg;
+
+use std::env;
+
+fn main() {
+    let ac = autocfg::new();
+
+    // If the "i128" feature is explicity requested, don't bother probing for it.
+    // It will still cause a build error if that was set improperly.
+    if env::var_os("CARGO_FEATURE_I128").is_some() || ac.probe_type("i128") {
+        autocfg::emit("has_i128");
+    }
+
+    ac.emit_expression_cfg(
+        "unsafe { 1f64.to_int_unchecked::<i32>() }",
+        "has_to_int_unchecked",
+    );
+
+    autocfg::rerun_path("