Make horse hitbox smaller (front-to-back)

[Hervarth]

To be fair, I don't know in detail how the code works.. so this could be dumb, if so my apologies.

I think this might help the problem that animals have with hitting hearthlings when they are on horseback, as well as making it easier for the hearthling to hit back. It would nerf bows against horses but hopefully thats not too much of an issue, since people probably block horses in to fight them anyway :p

edit: this isn't a radical suggestion, just a bandaid until stuff can possibly be fixed more sensibly.

[Zyean]

I'm more for a horse archery skill, you can't shoot off of horseback unless you have this skill, but you won't hit your own horse ever, and maybe add a third attribute needed, like agility or dexterity, to properly aim while on a horse. Although I wonder if horses will ever be fully tame able...