Initial release!

Added:

Spawn Egg

Spawn Egg Recipe

"Got Spawn Egg" adancement

Cat Spawn Egg Recipe

Ocelot Spawn Egg Recipe

Zombie Spawn Egg Recipe

Spider Spawn Egg Recipe

Cow Spawn Egg Recipe

Cave Spider Spawn Egg Recipe

Sheep Spawn Egg Recipe

Villager Spawn Egg Recipe

Creeper Spawn Egg Recipe

Pig Spawn Egg Recipe