Renamed SXGame_ to SGame_, SXPhysics_ to SPhysics_

source/decals/DecalManager.cpp

source/game/BaseAmmo.cpp

source/game/BaseAnimating.cpp

source/game/BaseCharacter.cpp

source/game/BaseTool.cpp

source/game/BaseTrigger.cpp

source/game/GameData.cpp

source/game/GameStates.cpp

source/game/NPCBase.cpp

source/game/Player.cpp

source/game/PropDoor.cpp

source/game/Ragdoll.cpp

source/game/ZombieHands.cpp

source/game/sxgame.h

source/game/sxgame_dll.cpp

source/level/level.cpp

source/physics/sxphysics.h

source/physics/sxphysics_dll.cpp

source/render/render_func.cpp

source/skyxengine.cpp