Add support for NES console

It would be interesting to port the library to support the target Nintendo Entertainment System (NES) / Famicom (ファミコン). The target will be assigned to the nes shortcut.

Status of the feasibility study for the request:

C Compiler: cc65 (target: nes)
Hardware specifications: https://shiru.untergrund.net/articles/programming_nes_games_in_c.htm
Programming examples: https://shiru.untergrund.net/articles/programming_nes_games_in_c.htm

spotlessmind1975 / midres

Add support for NES console #2