Added support for RGB PPU simulation (only RP2C04-0003 for now, as only it has chip photos).
Generated release notes:
- UMC UA6538 placeholder by @ogamespec in #197
- PAL/RGB PPU WIP by @ogamespec in #198
- Preliminary RGB PPU support by @ogamespec in #199
- Small fixes to the RGB PPU by @ogamespec in #200
- Fixed green mario hairs by @ogamespec in #201
- FormComponentViewer by @ogamespec in #202
Full Changelog: ppu-player-18...ppu-player-19