Major inventory api changes, fix so this wont break things!!

01-AD-17

Make ClickableItem extend ItemWrapper to further reduce overhead

Remove redundant new ItemStack for ItemWrapper

01-AD-16

Add new constructor to avoid redundant call to new ItemStack

Added setSkullSkin method to ItemWrapper

01-AD-15

Add method to set PlayerHead skull skins via UUID

Fix for NPE when ClickableItem doesnt have a click event

01-AD-14

add fix for if a ClickableItem doesnt have a ClickEvent bound

Stable again with new failsafe for ItemWrapper

01-AD-13

Throw error if constructor of ItemWrapper is null, produces a weird e…

Version Tests, do not use this even if you are aware of risks of dev buils

01-AD-12

Test a possible fix for duplicated ItemStacks not merging until serve…

Add hasData method for ItemWrapper

01-AD-11

Add hasData method to ItemWrapper!

Add deleteFile method

01-AD-10

add method to delete files

Add setModelData method for ItemWrapper

01-AD-09

Add setModelData to ItemWrapper

Fix data not writing to files at runtime

01-AD-08

Fix data not writing to JSON file at runtime