Snow Pig [Fabric]

- Changed License to LGPL v.3
- Added Chinese translation thanks to junshengxie

- The Smoker now turns frozen meat directly into the cooked variant
- The required Killer to get the Frosty Snig Disc from the Snow Pig is now defined in a Tag
- Added support for Tiny Skeletons
- Snow Pig now won't freeze in Powder Snow
- A Pig now turns into a Snow Pig when in Powder Snow for 300 ticks