Vanilla structures has been ported to Nukkit

Preview builds:

• Village: download
• Stronghold: download
• Mineshaft: download
• Desert Pyramid, Jungle Pyramid and Swamp Hut: download
• Dungeon and Desert Well: download
• Fossil and Shipwreck: download
• Igloo, Ocean Ruins and Pillager Outpost: download
• Ocean Monument: download
• Nether Fortress: download
• Woodland Mansion: WIP

After all major issues are resolved, these plugins will be merged.

In addition, we will add some configuration options in the future to allow users to customize their worlds.