Disenchanter (The Disenchanter Mod)

changelog:

• add ability to insert experience into `Jar of Experience` by sneaking and punching at the same time
• add configuration option to disable this behavior or disable the ability to extract experience
• add tool-tips to explain the behavior of the `Jar of Experience`
• add support for negative experience gains (aka xp-costs) for disenchanting with the `Jar of Experience`
• add configuration option to enable breaking non-damageable items after one disenchantment (Thanks to Charles445)
• make it so enchantment power (bookshelves, etc.) influence the experience gain for disenchanting with the `Jar of Experience`
• add configuration option to only allow disenchanting with the `Jar of Experience`