Perpetual Durability

This is a rewrite of the mod!

• The enchant is no longer obtainable
• The recipe is unchanged, but instead of an enchant, you get a tag
• All previous items with the Perpetual enchant will be automatically fixed
• The fixing process is seamless. All you have to do is put the items in your player's inventory.
• The old enchant book has been removed from JEI, but it still has a tooltip in case you come across the book.

Please let me know if you find any bugs, and I will fix them asap.