v1.3.0 with export to Raspberry Pi

MotC can now export to Raspberry Pi (64-bit), meaning you can deploy to aarch64 devices popular retro handhelds.

Programs will now the 'gamecontrollerdb.txt' controller mapping file (if present) to improve compatibility with game controller devices. Exported programs now include the latest version of this file from the SDL_GameControllerDB community database (as at when this MotC update was released).