Exiting Howl's Den with the Howl Fight there

[SiriusAshling]

Currently you can't exit Howl's Den without Teleporters or state sets because a piece of terrain involved in the Howl Fight blocks the way.

This could be solved by changing the behaviour so that piece of terrain only spawns while inside the Howl Fight. Since this would be a breaking gameplay change in that existing plandos might have intentionally used the Howl Fight Barrier, the behaviour should probably be togglable through an uberState.

It should probably still be a default true uberState to make it core randomizer behaviour that logic can rely upon