Mace Combat Backport

a backport of the mace and other related features from version 1.21

the mace is a weapon that deals more damage when the user falls

look at wiki for more info

items:

- mace (weapon) - breeze rod (ingredient) - wind charge (projectile item) - heavy core (ingredient)

enchantments: - density (increase mace damage) - breach (reduces target's armor effectiveness) - wind burst (launches users on attack)

extras: - config option to use snapshot behavior