Superb Steeds

Superb Steeds aims to reduce the tedium and increase the usefulness of horses!

The features this mod offers are: ``` * Horses no longer have determined statistics upon breeding, but instead every horse has a strength value from 1-5 in speed and jump. This is shown in an extended section of the horse inventory GUI. * These stats can be trained by simply riding the horse with a saddle, and will increase over time. * Horses no longer require a saddle to be controlled. This will however not count towards training. * Saddles will prevent a horse from bucking. * You can now feed horses while riding them by interacting with it with a food item (excluding hay bales) while looking down. * All horses have 15 hearts instead of a variable amount. * Leather horse armor allows horses to safely ride over powder snow. * Skeleton Horses are no longer slowed by Soul Sand. * Llamas can be trained to have more inventory slots by leading them around. ```