GameController iOS 11.0 Beta 3 to Beta 4 API Differences

GameController.h

Modified #def GAMECONTROLLER_EXTERN

	Header
From	GameController.h
To	GameControllerExtern.h

Modified #def GAMECONTROLLER_EXPORT

	Header
From	GameController.h
To	GameControllerExtern.h

GameControllerExtern.h

Modified #def GAMECONTROLLER_EXTERN

	Header
From	GameController.h
To	GameControllerExtern.h

Modified #def GAMECONTROLLER_EXPORT

	Header
From	GameController.h
To	GameControllerExtern.h