unit job again
	modified:   AssetManager.cpp
	modified:   CMakeLists.txt
	modified:   GameObject.cpp
	modified:   GameState.cpp
	modified:   GameState.h
	modified:   units/Building.cpp
	modified:   units/Building.h
	modified:   units/BuildingIdentity.cpp
	modified:   units/BuildingIdentity.h
	new file:   units/CreateUnitEmitter.cpp
	new file:   units/CreateUnitEmitter.h
	new file:   units/CreateUnitJob.cpp
	new file:   units/CreateUnitJob.h
	deleted:    units/CreateWorkerJob.cpp
	deleted:    units/CreateWorkerJob.h
	new file:   units/JobEmitter.cpp
	new file:   units/JobEmitter.h
	modified:   units/MBuilding.cpp
	modified:   units/MBuilding.h