add Nintendo Entertainment System

[pinobatch]

Consider expanding beyond handhelds. Some steps of this:

• Find a couple of maintainers to take care of the entries database
• Create a "nesdev" database repo (equivalent to https://github.com/gbdev/database) https://github.com/nesdev-org/homebrew-db
• Add entries for a game and a tool, to test categories. Could use <plug>Thwaite and 240p Test Suite</plug>
• Add filters and specific NES pages on the frontend
• Add NES emulation capabilities on the frontend with binjnes or RusticNES
  NES integration: add RusticNES or binjnes as emulator virens#51

[zeta0134]

I'm happy to help where I can. I've got a few issues open to improve RusticNES's WASM embed, and I'd also be willing to help curate the database, though my time will be quite limited due to other IRL obligations.