oracledb py module (#5421)

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##### Summary

Fixes: #1996

##### Component Name

python.d.plugin oracledb module

##### Additional Information

#### Used queries:

 - [system metrics]:

```sql
SELECT
  metric_name,
  value
FROM
  gv$sysmetric
ORDER BY
  begin_time
```

<details><summary>collected metrics</summary>
<p>

|   name| 
|---|
| average_active_sessions |
| session_count |
| session_limit_percent |
| logons_per_sec |
| physical_reads_per_sec |
| physical_writes_per_sec |
| disk_sort_per_sec |
| long_table_scans_per_sec |
| database_wait_time_ratio |
| shared_pool_free_percent |
| memory_sorts_ratio |
| sql_service_response_time |
| user_rollbacks_per_sec |
| enqueue_timeouts_per_sec |
| buffer_cache_hit_ratio |
| cursor_cache_hit_ratio |
| library_cache_hit_ratio |
| row_cache_hit_ratio |
| global_cache_blocks_corrupted |
| global_cache_blocks_lost |

</p>
</details>
</br>

 - [tablespace]

```sql
SELECT
  m.tablespace_name,
  m.used_space * t.block_size AS used_bytes,
  m.tablespace_size * t.block_size AS max_bytes,
  m.used_percent
FROM
  dba_tablespace_usage_metrics m
  JOIN dba_tablespaces t ON m.tablespace_name = t.tablespace_name
```
<details><summary>collected metrics</summary>
<p>

|   name| 
|---|
| tablespace_size |
| tablespace_used |
| tablespace_used_in_percent |

</p>
</details>
</br>

 - [activities count]

```sql
SELECT
  name,
  value
FROM
  v$sysstat
WHERE
  name IN (
    'parse count (total)',
    'execute count',
    'user commits',
    'user rollbacks'
  )
```
<details><summary>collected metrics</summary>
<p>

|   name| 
|---|
| activity_parse_count |
| activity_execute_count |
| activity_user_commits |
| activity_user_rollbacks |

</p>
</details>
</br>

 - wait time

```sql
SELECT
  n.wait_class,
  round(m.time_waited / m.INTSIZE_CSEC, 3)
FROM
  v$waitclassmetric m,
  v$system_wait_class n
WHERE
  m.wait_class_id = n.wait_class_id
  AND n.wait_class != 'Idle'
```

1 files changed, 1 insertions, 0 deletions

diff --git a/collectors/python.d.plugin/Makefile.am b/collectors/python.d.plugin/Makefile.am
index 3599d9c9fa..b6bdbcc4f8 100644
--- a/collectors/python.d.plugin/Makefile.am
+++ b/collectors/python.d.plugin/Makefile.am
@@ -78,6 +78,7 @@ include nsd/Makefile.inc
 include ntpd/Makefile.inc
 include ovpn_status_log/Makefile.inc
 include openldap/Makefile.inc
+include oracledb/Makefile.inc
 include phpfpm/Makefile.inc
 include portcheck/Makefile.inc
 include postfix/Makefile.inc