WorldGeneratorExtension 1.5.1

Based on plugins made by wode490390

This plugin generates following structures:
- Mineshaft
- Igloo
- Ocean ruin
- Pillager outpost
- Coral crust
- Ocean monument
- Desert well
- Dungeon
- Desert pyramid
- Jungle temple
- Swamp hut
- Stronghold
- Fossil
- Shipwreck
- Village (old type)
- Ruined portal (overworld)
- Nether fortress
- Nether fossil
- End main island portal & towers
- End small island
- Chorus flower
- End gateway