Adds a basic editor for recorded Geonet/Unity Tower locations for the Gen 4/5 games, building on this [post by Danius88](https://projectpokemon.org/home/forums/topic/62055-bw-b2w2-unity-tower-geonet-and-passerby-research/).
So far, I've implemented buttons that set all locations (including unused ones), set all legal locations, and clear all recorded locations; and checkboxes to toggle whether the whole globe is visible (used in Japanese games) and whether the ferry to Unity Tower is unlocked.
Haven't implemented any UI for editing the status of individual locations, since I'm not sure how to lay it out.
Also haven't implemented anything related to how the data of the other players in Unity Tower is stored.
