Add support for the Casio Loopy platform.

[randomsomeone69-real]

Hello.

I've always been interested to play the Casio Loopy. However, no emulators have emulated yet the mose extension of the Loopy.

Furthermore, it is a niche system (like the Nichibustu My Vision) and I think it would be interesting to have it emulated.

The console uses a Hitachi SH7021 CPU (SuperH architecure).