Singleton cGame..

Fixes de variables no inicialitzades.. que prenien valors "ronya" a
l'inici .quina porqueria.
Add FMOD library.
Add cSound class.
Fix AA warnings.
Add AA A* algorithm.
Merge remote-tracking branch 'dani/master'

Conflicts:
	src/IsoEngine.vcxproj
	src/IsoEngine.vcxproj.filters
dev
Merge remote-tracking branch 'marcel/master'

Conflicts:
	src/IsoEngine.vcxproj
	src/IsoEngine.vcxproj.filters
	src/cCritter.h
	src/cGame.h
Funcio per pintar feta.
GraphicsLayer FULL REWORK
Reverse iterator for Drawing correct Z-levels