Feat: add online NES emulator

[timotheeg]

Adding rustico online NES emulator into Nestrischamps.

Why? thinking is like this:

1. Let a user provide its own Tetris rom
2. patch the rom into Tetris Gym V6
3. Load the rom into high performant web based emulator so folks can just play
4. Read the game data straight from the emulator memory
5. Send game data to NTC - NO OCR needed!
6. use your NTC renderer as usual, or be in a game room for a match as usual

Notes and disclaimers:

• Even though rustico is a high performance emulator written in Rust and compiled to Web Assembly, you still need a decently performant computer to make this work
• 2 things not added compared to normal producer:
  1. no room view to see the opponent game
  2. player cam not supported (for now)

[timotheeg]

Good enough to push for now