Revert Passive Spawns

Revert Passive Spawns is a really simple mod that modifies how every passive entities (such as Pigs, Cows, Frogs, Pandas, etc...) spawn.

This pretty much means mob farms are no longer required and you no longer need to generate new chunks in order to get food.

If you are running on version 26.3 snapshot 10 and above, you need to add the following JVM flag: -XX:StackShadowPages=32