## Changes:
- Added Chicken Coop and Pig Pen structures
- Added Flamingo Chicken variant (spawns in Beach biomes)
- Added Penguin Chicken variant (spawns in Snowy Beach biomes)
- Added Potato variants for Cows, Chickens and Pigs (spawn in/with Potato Farm structures)
- Added Potato Farm structure (generates in Plains & Sunflower Plains biomes)

## Fixes:
