Minigame via global commands

[DavidRieman]

Would be nice to demonstrate drop-in modular minigame libraries where all code for the mini-game is self contained in a single tiny library. (This sort of approach means the eventual WheelMUD ecosystem could utilize things like NuGet modules for updating specific highly-independent sub-systems.)

For this ticket, we should focus on demonstrating a global mini-game (as in, one that doesn't require you to be in a specific room or whatnot) and just relies on global command processor to engage the game, etc. A good candidate for such a minigame might be a wordle or nerdle inspired game.