Nostalgia Shader v3.0 Preview E7 (Patreon)

Oi, this version got done a bit later than I intended thanks to some stuff keeping me busy but here it is anyways:

* adjusted skylight* adjusted colorgrading* adjusted exposure* adjusted vignette* added legacy lens flare* fixed cloud nighttime transition* clouds are animated using world time by default* fixed (block) entity rendering with normalmaps on 1.15+* fixed visual artifacts with impossible surface directions* added support for the end (WIP)Also mind the ninja fix for nVidia and nether.