Mob AI Tweaks

-Added slimer zombies. These are zombies that spawn holding little slimes which shoot high-knockback slime balls.

-Added a rework to silverfish.

-Animals can now be fed with chorus fruit to forcibly teleport them out of danger.

-Fixed husks killing whatever is riding them when burrowing. Now, the riding mobs are given temporary invincibility unless the husk was hit by another entity.

-Fixed zombie dads making door breaking sounds when killed.

-Fixed door zombies being able to spawn from mob and trial spawners.

-Fixed crash with Lazy AI.