Pulchra Alpha Update - Hellscapes

This new update brings mostly nether specific textures but some other nice improvements and features as well. I spent a lot of time doing some research on popular horror games, movies as well as phobias people have. This all really helped with the development of the new and improved nether textures in this update. For some blocks, I'll provide a little description and the thought process I had when making it. Besides the new nether textures, I also did various improvements and fixes to textures for better support of labPBR encoding. There are still some changes that need to be made for some textures but for the most part, everything should work properly with shaders supporting the labPBR format such as Kappa. One last thing that was thrown in is mostly for shader developers to use but is also very nice to have as a builder or general player, which is colored redstone lamps. This allows path-tracing shaders to take advantage of them and emit colored light instead of the normal yellowish-orange color. As of now this feature only works with shaders supporting the labPBR format which SEUS PTGI does not have yet. So if you plan on using this feature keep in mind it will not work properly unless you're using Kappa or one of the other many shaders supporting the format. You can find a list of shaders that support the format here: https://github.com/rre36/lab-pbr/wiki/Shader-Packs With all that out of the way lets get into the changes!

Blocks:
Added basalt side + 16 variants (top texture is still being tweaked)
Added blackstone + 16 variants (this is probably going to change to be a more natural material)
Added cracked nether bricks + 16 variants
Added crimson nylium + 16 variants (goal was to aim for something organic yet natural, may cause trypophobia)
Added crimson nylium side + 4 variants
Added crimson stem + 4 variants (instead of doing a borind default improved look for this like every other resource pack, I went for something a bit more hellish. This texture uses a burnt flesh texture mixed with large open cuts with blood pooring from them)
Added stripped crimson stem + 4 variants (since the unstripped version is cut burnt flesh well, that left me only one option for the stripped version. Bloody muscle fibers of course! Next time when you go to strip a crimson tree, just think that you're actually stripping the flesh off of it to see that lovely bleeding muscle underneath!)
Added nether bricks + 16 variants
Added nether wart block + 16 variants (this one was quite fun to do. Since the textures called nether wart, I used the skin of a toad which gives the appearnace of warts in the texture, or eyes blankly staring at you. Whichever you want to think of it as)
Improved nether rack + 16 variants (eyes will be coming back eventually)
Added polished blackstone bricks + 16 variants
Removed shroomlight (this is termporary until I can further improve this material)
Improved soul sand + 16 variants
Added soul soil + 16 variants (this will probably be improved later on)
Added warped nylium + 16 variants
Added warped nylium side + 4 variants
Added bone block top + 16 variants
Added bone block side + 16 variants
Added wither bone block top + 16 variants (this is biome specific to the soul sand valley biome)
Added wither bone block side + 16 variants (this is biome specific to the soul sand valley biome)
Improved redstone lamp + 8 variants
Added colored redstone lamps: blue, brown, cyan, gray, green, light blue, light gray, lime, magenta, orange, pink, purple, red, white, yellow, and black. Black is a color shifting lamp aka the gamer block

Items: Added new and updated block textures to the inventory block models

Bug Fixes/General Changes:
Greatly improved labPBR support for overlays and emissive blocks.
Optimizations for new textures