[feature]: Sync with Plex

[mxro]

Could it be useful to extend this plugin to also support [Plex][https://www.plex.tv/] playlists. Would probably just need some kind of mapping between file paths in MusicBee and Plex.

Here some related tools:

• plex-playlist-sync: Sync from Spotify to Plex
• plex-playlist-sync: Syncs Plex playlist between accounts