SoundLoader uses thread to change music when song has finished. (QuickFix, not final implementation)
GameMusic thread & MenuMusic thread. Implemented the right way. Music changes every 3 minutes and when song ends
New music files
Close thread when switching gamestates
Improved SoundLoader class with an improved thread.
Added 2 songs
Merge branch 'Develop' of https://github.com/PimV/Bermuda-TheGame into SoundFix

Conflicts:
	Bermuda/Bermuda/Bermuda.vcxproj.filters
Merge pull request #40 from PimV/SoundFix

Sound fix