Nostalgia Shader v3.0 Preview E6

This update focuses on water and dimensions, especially water got a fancy overhaul wheras the newly added nether has its own unique aesthetic.

Changelog:

- adjusted water default coefficients
- added parallax water waves
- added setting to control vanilla "texture-pattern" blending on custom water
- fixed cloud lighting when using the story mode option
- improved TAA (again)
- added full nether support