first (working) commit
fully functioning background maps & more gameui fixes
file & project cleanup
removed a lot (>2000 lines) of xbox/console-specific code
brought back classes/headers that were accidently overriden, fixed physics props spawning
Merge branch '2007-gameui'

Conflicts:
	src/game/client/scratch_sdk_client.vcxproj
	src/game/server/scratch_sdk_server.vcxproj