Some very cool mob variants without all the other junk!

-OPTIFINE REQUIRED :D
- Lots of villager biome variants, including nether and end dimensions
- Villager ethnicities (pale and dark skin variants)
- Baby villagers have cute big baby eyes
- Alex zombie, husk, and drowned variants
- Lots of zombie villager variants, including husk and drowned
- Lots of mob variants and tweaks, such as biome specific wolves and yellow chicks
-and MORE