ALttPEntranceRandomizer

dungeonsfull logic fix - prevent the desert prize from being required to reach desert main (unless keysanity allows access to the keys).

Split invalid connections into normal and inverted

Enhance mandatory exit logic to ensure they do not block themselves, and also handle boundary conditions that often occur in inverted dungeonsfull

Inverted dungeonsfull fix - Force reusing an existing cave if there are not enough entrances to use a new one.

Stop inverted dungeonsfull from generating crossworld dungeon connections.