the soundsourcespotify is working fine i have all

the SoundSourceSpotify is working fine. I have all spotify sounds say they are in “/tmp/music.spotify” for now, and my source handles “.spotify” files. I will either make physical files with metadata for each track, or I will need to more tightly integrate with the SpotifyFeature.

I opted to extend SoundSourceSndFile for now since it is the path of least resistance, but I have a more proper design in mind that uses delegation like SoundSourceProxy.