[2.0] Additional generator features

[DaMatrix]

This is simply a checklist for additional features to be added for 2.0's terrain generator after CloudburstMC/Nukkit#1303 is merged.

• [ ] Some kind of mob spawning (need to make sure that guardians only spawn in ocean monuments, mooshrooms only spawn on mushroom islands, etc. Even though mobs aren't actually implemented in Nukkit yet, it'd be good to get the basic design out of the way now)
• [ ] Some kind of loot table system for generating items in chests
• [ ] Caves
• [ ] Ravines
• [ ] Structures
  • [ ] Desert pyramids
  • [ ] Dungeons
  • [ ] End cities
  • [ ] Fossils
  • [ ] Igloos
  • [ ] Jungle pyramids
  • [ ] Mineshafts
  • [ ] Nether fortresses
  • [ ] Ocean monuments
  • [ ] Strongholds
  • [ ] Villages
  • [ ] Witch huts
  • [ ] Woodland mansions

[TheShermanTanker]

I'd like to help with this checklist if I can