Support M3U files

[antoinepirlot]

Here's an example of m3u file:
#EXTM3U #EXTINF:222,A. R. Rahman & The PussycatDolls - Jai Ho! (You Are My Destiny) (avec Nicole Scherzinger) #EXTVLCOPT:recursive=collapse file:///F:/OneDrive%20-%20UCL/Musique/iTunes/iTunes%20Media/Music/A.%20R.%20Rahman%20%26%20The%20PussycatDolls/Jai%20Ho%21%20%28You%20Are%20My%20Destiny%29/01%20Jai%20Ho%21%20%28You%20Are%20My%20Destiny%29%20%28ave.mp3

Here's an example for m3u8:
#EXTM3U #EXTINF:202,5 Seconds of Summer - She Looks So Perfect #EXTVLCOPT:recursive=collapse iTunes/iTunes%20Media/Music/5%20Seconds%20of%20Summer/Unknown%20Album/She%20Looks%20So%20Perfect.mp3

the path begins with : file:///path/to/file.extension for m3u and begins in Music/ folder for m3u8: iTunes/iTunes%20Media/Music/5%20Seconds%20of%20Summer/Unknown%20Album/She%20Looks%20So%20Perfect.mp3

At first time, just check for path.