[Game] Create game demo using omnidreams in FlashDreams

[aidanfnv]

Need to create a game demo using omnidreams to show off its potential as a driver for interactive world models in games.

• The demo should be based in part on, but be separate from, the interactive-drive demo
• The demo should leverage the new inference API
• The demo should feel like a cohesive game experience
• The demo should be fun to play
• The demo should integrate and showcase as many applicable new FlashDreams features as possible