Expanding Plex Playlist Sync to search for the missing songs in CSV in music library

[secretlycarl]

Did you search the existing issue to make sure this is not a duplicate?
Yes

Is your feature request related to a problem? Please describe.
I am trying to write a python script that can search through the CSVs generated by PSS, then search for the songs in my plex library, and add them to the appropriate playlists on Plex.

Describe alternatives you've considered
I could go through and add everything individually but I figured this would be more useful in the long run.

Additional context
I have a working script linked below.

https://github.com/secretlycarl/plex-playlist-fix