Super Mace Slam enchantment2: Electric boogaloo

Added some enchantments for the Mace:

    Extremely rare in Ominous Vaults:

        Shockwave: When the enchanted mace lands, it creates a shockwave whose damage and radius scale with fall height plus the fall damage player recived. weapon hit will not trigger shockwave

        Concussion: Shockwave hits apply Slowness. Higher enchantment levels increase the effect level and duration, and additionally apply Weakness, Mining Fatigue, and Nausea. Remove a random positive effect at lvl 5. weapon hit increase effect lvl by 1

        Implosion: The shockwave no longer knocks enemies outward, but instead pulls them inward. Higher enchantment levels add a suction effect toward the shockwave's center. does nothing without shockwave.

     Extremely rare in Ancient Cities:

        Echo: When a shockwave is triggered, it triggers additional shockwaves a number of times equal to the enchantment level, each at 50% of the original intensity. does nothing without shockwave.

effects and most values can be configurated