Trade & Enchant Overhaul

Added a config list of enchantments that will never appear in Enchanted Script items
Enchanted Scripts can now give you non discoverable enchantments, so the list above should allow you to fully take control over what enchantments to find.
You should now be fully able to upgrades enchantment levels with librarian traders even if they get above 3 enchanted books already.
Plans for merging this mod with Just a lot more enchantments are in discuss.