IOSurface macOS 10.14 to 10.15 API Differences

IOSurface.h

Added #def IOSURFACE_H

IOSurfaceAPI.h

Added #def IOSURFACE_API_H

IOSurfaceObjC.h

Added #def IOSURFACE_OBJC_H

IOSurfaceRef.h

Added #def IOSURFACE_REF_H