little rework of direction sprite to use cloneddirectionsprite like normal
sprite
	modified:   StiGame/CMakeLists.txt
	new file:   StiGame/sprites/ClonedDirectionSprite.cpp
	new file:   StiGame/sprites/ClonedDirectionSprite.h
	modified:   StiGame/sprites/DirectionSprite.cpp
	modified:   StiGame/sprites/DirectionSprite.h
	modified:   StiGame/sprites/DirectionSpriteFile.cpp
	new file:   StiGame/sprites/DirectionSpriteLibrary.cpp
	new file:   StiGame/sprites/DirectionSpriteLibrary.h
	new file:   StiGame/sprites/IDirectionSprite.cpp
	new file:   StiGame/sprites/IDirectionSprite.h
	modified:   StiGame/sprites/SpriteLibrary.cpp
	modified:   StiGame/sprites/SpriteLibrary.h