Create a non-terraforged dimension

[TLATER]

To work around #6, #7 and #8, we're considering the solution of creating a new dimension with default world gen.

This is very possible using some datapack settings. The only problems are:

• [ ] How do we teleport there?
  • A simple command block at spawn with a pressure plate on it could do the trick.
  • Feels a bit cheaty.
  • Custom portals are apparently possible, but nontrivial. Looking into others' solutions for this.
• [ ] How do we keep people from wanting to live there?
  • Desirable because otherwise the overworld will become too sparsely populated, and megaprojects much less practical.
  • We could:
  • Make beds blow up
  • Keep it night constantly
  • Something else?