Add some unfinished methods to SongQueue
Add some unfinished methods to SongQueue

fiveofeight/mumbledj,MrKrucible/mumbledj,Gamah/mumbledj,matthieugrieger/mumbledj,GabrielPlassard/mumbledj,RichardNysater/mumbledj,pzduniak/mumbledj,r3valkyrie/mumbledj