Added Brown Rabbit model and a basic ai system.
added toast variant, others have to be implemented.
TODO:
add other variants, add their spawn in the biomes, add IDS_RABBIT And change sounds.
ADD color to the spwanegg.
Acacia and Dark Oak Logs, Planks and Stairs.
Fences, Fence Gates and Doors for Spruce/Birch/Jungle/Acacia/Dark Oak.
Iron Trapdoors and Inverted Daylight Sensor.