Realistic Horse Genetics

1.5.0.1: Fix bug where the summon command did not work without specific NBT info.

Changes from 1.5.0: -Mushroom gene added. -Horses can be different sizes. This can be disabled in the config. -Spawned horses should usually be 12-15 hands high. To get smaller or larger, breed for it. -Horses under 126.25 cm are too small to ride (the player + saddle weigh 140 pounds) -Horses that are too small for the player to ride don't need to be tamed -Horses can carry up to two passengers based on the size of the horse and the riders (villagers are larger than players) -Ctrl + right click on an entity while you are riding or leading a horse to mount it on the horse -Ctrl + right click on a horse to dismount its passengers -By default Ctrl + right click only works with horses. In the config it can be disabled entirely, or expanded to work on other mobs (which is especially nice for dismounting entities from boats). -There are more shade variations. There's some randomness in what shade a horse will be based on how much individual horses can vary across the years and seasons. -There are more shades of roan. This is random based on how much roan horses can change between seasons.

Horses may change a bit on updating: -Some horses may be slightly larger or smaller, but to get more variation look for horses in newly generated chunks. -Horses may change health slightly -Some of your horses may change shade, sometimes even to almost black. -Some of your roan horses may have less roaning. -ERU (equine recurrent uveitis) is less common now, and some of your horses that had it before may no longer have it. -Horses with genetics that sometimes cause a health issue may change whether or not they have that health issue