Chest Cavity [Fabric]

Additions:
-New weapon type: Cleavers
--Swords, but with axe combat stats
--Greatly increased organ drop rate
--Automatically salvages all organs dropped
-New Enchantment: O-Negative
--Treasure enchantment, compatible with everything
--Level I makes the organ safe to use, even if owned by another
--Level II makes the organ count as the user's for all purposes
-New Enchantment: Surgical
--Available on melee weapons, looting alterative
--Twice as effective as looting, but only for organ drops
-New Enchantment: Tomophobia
--Tresure enchantment, prevents all organ drops
-New Enchantment: Curse of Malpractice
--Tresure enchantment, curse
--On tools, will infect all organ drops with Malpractice
--On organs, will cause organ rejection

Changes:
-Skeletons, Wither Skeletons, Zombies nerfed
--Many chest cavity slots are now unusable for them
--Organs put in those slots will fall out
-Spider Hearts now grant poor filtration
-Blaze Cores now grant average health (down from good)
-Prions now last much longer
-Chest Opener now fails if the target has chest armor
--This is indicated by a metal crunching sound
--This does not apply when opening yourself
-Chest Opener now fails if the target has both more than 10 hearts of health and more than half health
--This is indicated by a fleshy thunk sound
--This does not apply to entities with Ease Of Access
--This does not apply when opening yourself
-Ease Of Access now has a special sound effect when user is opened

Bugfix:
-Writhing Soulsand could not be salvaged
-Fixed crash when excessive looting was used against bosses