Mob AI Tweaks

-Added door zombies. Door zombies hold a wooden door as a shield. They can only be attacked from behind or with any weapon that can bypass shields. They have a 1% chance of spawning if the local difficulty is 2.5 or higher. Only normal adult zombies that do not have a mount can be door zombies. They also have a 50% chance of spawning with an iron door in crazy mode.

-Added tameable_with_no_regeneration datapack tag, this prevents tamed mobs from receiving health regeneration added by this mod. Contains allays, armadillos and axolotls by default as they already have health regeneration.

-Added tamed_mobs_regen_amount and tamed_mobs_regen_cooldown to change the regeneration capabilities of tamed mobs. Setting either to 0 disables this.

-Added zombie_leader_spawn_chance, which controls the chances of zombie leaders spawning on a horse and with a siege banner. Default is 10%. This combined with the chances of normal zombie leaders spawning in vanilla lowers the spawn rates to a 0.5% chance.

-Added local difficulty settings for zombie dads, wither skeletons with bows and zombie pigmen with crossbows in the config measured in percentage. Setting them to 0 means they always spawn regardless of local difficulty. Ranges from 0-600, goes even higher if other mods increase the local difficulty cap (vanilla's default is 6, or 600%).

-Fixed fireballs spawned by Evokers and Blazes not despawning if they despawned from natural causes.

-Fixed pillagers putting their crossbows in their offhands if they ever get ambushed while holding their melee weapons and eating food they have stolen.

-Changed how pillagers move when reloading their crossbows. They now move at full speed when using their crossbow (from this mod's 75% previously) but is now halved to 50% speed when reloading. If they are strafing away from their targets, this is lowered to 80% and 40% respectively. This was done to make them easier to hit and also making them much easier to outrun for both players and villagers alike. (Was originally thinking of adding this to skeletons as well but it breaks their AI sadly...)