Zork Grand Inquisitor: Implement New Game (#2539)

Adds Archipelago support for Zork Grand Inquisitor, the 1997 point-and-click PC adventure game.

The client (based on `CommonClient`), on top of its regular Archipelago duties, fully handles the randomization of the game and the monitoring / modification of the game state. No game modding needed at all; the player is ready to play an Archipelago seed if they can play the vanilla game through ScummVM.

The "reverse engineering" (there's likely a better term for this...) of the game is my own original work and I included an MIT license at the root of my world directory.

A PopTracker pack was also created to help people learn the game: https://github.com/SerpentAI/ZorkGrandInquisitorAPTracker

README.md

@@ -61,6 +61,7 @@ Currently, the following games are supported:
 * TUNIC
 * Kirby's Dream Land 3
 * Celeste 64
+* Zork Grand Inquisitor
 
 For setup and instructions check out our [tutorials page](https://archipelago.gg/tutorial/).
 Downloads can be found at [Releases](https://github.com/ArchipelagoMW/Archipelago/releases), including compiled