Add undocumented MoviesSearch to post_commands

[LRomandine]

Description

add MoviesSearch to post_commands. undocumented API that is the radarr equivalent of sonarr EpisodeSearch. It triggers a search for the given movie the same as clicking the "Search Movie" button in the UI.

Related issues

Closes #155

Type of change

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• CI / Tests update
• Documentation update

How has this been tested

Tested in a python script on my system against a live Radarr installation. I used info from this Radarr issue Radarr/Radarr#3315

• I have added new tests where required
• I have run nox -s tests locally and passed
• I have tested this feature in a python script

Script used to test

[codecov]

Codecov Report

Merging #156 (718a5be) into master (3771b92) will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master     #156   +/-   ##
=======================================
  Coverage   93.05%   93.05%           
=======================================
  Files          15       15           
  Lines        1066     1066           
=======================================
  Hits          992      992           
  Misses         74       74           

Impacted Files	Coverage Δ
pyarr/models/radarr.py	100.00% <ø> (ø)

[marksie1988]

Hi @LRomandine,

Before I can merge the version would need to be bumped by one minor in the pyproject.toml file. this will make all tests pass.

[LRomandine]

Done.