Experimental Gameboy and Gameboy Color emulator written in C#

Checklist:

~~Memory mapping with switchable banks~~
~~CPU Register implementation~~
~~500 CPU operations/opcodes implemented~~
~~Passing CPU json unit tests~~ All CPU tests are passing now!
~~Testing CPU instructions with blargg's test rom via serial port (+ custom debugger)~~ All Blaarg tests are passing now!
~~Implementing timers and interrupt handling~~
~~Implementing PPU~~ (PPU is implemented now, but is not acid-compliant yet)
~~Joypad with configurable keymap~~
~~OAM DMA Transfer~~
~~Running first MBC0 titles~~
Extra Mappers (~~MBC1~~, ~~MBC3~~ and MBC5 at the very least)
~~RTC~~
Emulating sound
GB->GBC modes switching
Adding GBC features
Save/Load state
Bugfixing, peripherals, improving accuracy

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