Knight Bodyguard

• Knight no longer attacks other mobs tamed by its owner (for the most part, it can still occasionally attack said mobs, just reload the world if it does and it should stop)
• Knight Inventory no longer opens if you right-click the knight while crouching so you don't have to always press Escape after making it sit
• You can no longer access the inventories of tamed knights, this also makes it easier to tame them without having to spam Escape
• Knight now loses regeneration upon being attacked by entites that aren't its owner and regains it upon killing an entity

I was having issues with the Forge version, and while I'm pretty sure I fixed them, that may not be entirely true, so expect potential issues.