Finished the GB emulator (to some extent)
For now, the hard-coded paths are:
- data/fonts/Alef.ttf for the menu font.
- data/chip8/roms/TETRIS for the CHIP8 ROM
- data/bytepusher/roms/nyan.bp for the Bytepusher ROM
- data/gameboy/roms/Tetris.gb for the Gameboy ROM