Better Enchanting

Added a new functionality : the Enchantment Catalyst

• Catalyst can be use at a Grindstone to with an enchanted item (or book) to store all enchantments of the object in the Catalatys. Doing so destroy the original object.
• Catalyst can then be used at an anvil with an unanchanted item to transfer enchantments to it.
• Ther is a 10% chance (value can be changed in config) that an empty Catalyst will be returned when on use on an Anvil.
• Catalysts can be merged together but for a very hight price.