Changes to horse armour

[Kriegstofu]

Horses were once killable, which meant you either die pretty quickly or take another horse from either a bot or from an earlier wave. Reverting back to that system would probably be best in terms of gameplay but the player would not be able to customize their horses just as much

Also putting a crosslink to my own post regarding Pikeman in cavalry mode here in case some dev overlooks my post: https://forum.nordinvasion.com/showthread.php?tid=75543