[Feature Request] Multiple lyrics files for a single song

[mimvoid]

I listen to many songs of different languages, and have multiple .lrc files in Japanese, Romanji, English, Chinese, and so on. Tauon only detects lyrics with the same filename as the song. However, I find it extremely clunky to include everything in a single file. Multi-line support (#567) would be appreciated, but I'd like to suggest something else too.

It would be great if Tauon could find all .lrc files that have the same name as the song, but which can also have different endings like .en.lrc and .jp.lrc. Then, let the user switch between them in the lyrics panel. Or additionally, display all lyrics at once.

For a visual reference, I think Rabbit Lyrics' demo shows this very well.