Rethink about Texture Variations

[arunoda]

We need to experiment with doing texture variations.

• [x] Here are some existing methods:

  • Simple noise-based color changes
  • Using the new Texture Variations node
  • Do some randomized UV based tiling
  • Use the above to do the rotation instead of offset shifting. (As we see on the Unreal Sensei's videos)
  • Explore texture variation node in UE 4.26
  • Use the Texture Bombing Node

• [x] Recreate a version based on 4.26 Texture Variations but with procedural noises, randomness

• [x] Allow baking that procedural stuff into a map

• [x] Add in-node documentation

• [x] Move this setup to OpenLand

• [x] Use this in OpenLand