Barely Default x Fresh Animations

Fixed some stuff.

Added new models for spiders spawning in various biomes.

Half of all spiders in deserts are now scorpions. Look out!

There’s two random colour variants for scorpions, to match the variety the spiders have already in Barely Default.

Half of spiders on beaches and ocean biomes are now crabs. Look out, but sideways!

Added a texture variant for crabs to represent the 2023 Mob-Vote candidate, spawning in mangrove swamps.

Crabs in snowy biomes have a darker red shell, and blue eyes, to match spiders in snowy biomes.