Support for wavpack (via SMB share)

[Soukyuu]

Most of my offline music is in wavpack format (.wv + .wvc), sadly it doesn't seem MA detects it as music despite using ffmpeg as a backbone (at least from what I understood). The format uses APEv2 tags. The wvc is the correction file which should be picked up by ffmpeg automatically when opening the .wv file, so only .wv would have to be added to the hardcoded list of extentions I saw something about.

It's the last missing piece to use MA for everything for me, I've been using LMS + squeezelite for offline music.