Display bandwidth in different unit families (#328)

* Allow selecting unit families

- Supported units are {binary,SI}-{bytes,bits}

* Fix typo

* Better error msg in the unreachable case

* - I can't believe I did this. Frankly, terrible.

* Add unit test

* Add peta&pebi units to be absolutely future-proof

* Minor code style improvement

1 files changed, 1 insertions, 0 deletions

diff --git a/Cargo.toml b/Cargo.toml
index feb17b8..fd2307b 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -41,6 +41,7 @@ thiserror = "1.0.50"
 tokio = { version = "1.33", features = ["rt", "sync"] }
 trust-dns-resolver = "0.23.2"
 unicode-width = "0.1.11"
+strum = { version = "0.25.0", features = ["derive"] }
 
 [target.'cfg(target_os = "linux")'.dependencies]
 procfs = "0.16.0"