SuperGrafx-CD/Space Ava 201 support

[Proletar666]

Unofficial homebrew title (ironically utilizes PCE's official hardware to the maximum in a way unused by any official licensed game in the library):

https://nicole.express/2020/supergrafx-cd.html

https://www.youtube.com/watch?v=Ux6cl_zpgOc

https://nicole-express.itch.io/space-ava-201

[drhelius]

It looks like it's working fine if you force the console model to "SuperGrafx".

I can add it to the internal DB so it's automatically detected as SGX.

[drhelius]

I see a glitch in a transition during title screen. I'll keep it open to take a look.