SuperFancyClouds: Rearchitected

Backport to 1.16.5

Version Note: Some features are missing in this version

1. Failure to extend render distance of clouds. So if clouds is distant to you, they'll be culled by view border. For a better visual, please increase view distance of vanilla or decrease clouds render distance of SFCR.
2. Sample steps value 3 is weird, DO NOT USE unless you want help me to testing it.
3. Due to base sample method changed, clouds shape is very difference to 1.18+