MediaPlayer watchOS 7.4 to 8.0 API Differences

MediaPlayerDefines.h

Removed #def MP_HAS_UIKIT

Added #def MP_FALLTHROUGH

Added #def MP_TYPE_PROTOCOL

Added #def MP_COMPLETION

Added #def MP_OVERLOAD

Added #def MP_FINAL_CLASS

Added #def MP_HAS

Added #def MP_HAS_HEADER