Better Structure Generation

Add some more generation settings to "Structure Spawn"

The Ideas Are, you could check a box saying if it was at a certain location (like the End Fountain, Main End Island, or the Stone Platform), and you could type in what coordnates the structure is at (or at least 0, 0), next is you can add if structures were in Close Proximity or Touching other structures and say what structures and you could say if it has a chance of spawning next to it (Village Structures touching the Paths/Well, Obsidian Pillars touching the Main End Island, Obsidian Platform next to the Main End Island, and End Ships next to End Cities)