Add Raw NBT option for ItemFactory

[FireML]

Closes #267 This has a chance of breaking on server updates, however that is the server admin's responsibility to fix.

• Adds raw nbt as an option for item factory.
• Adds /emf admin rawitem to make raw items easy for server admins to copy.

Config is like this:

    Enchanted Sword:
      item:
        raw-nbt: '{components:{"minecraft:enchantments":{levels:{"minecraft:looting":3,"minecraft:mending":1,"minecraft:sharpness":5,"minecraft:unbreaking":3}}},count:1,id:"minecraft:netherite_sword"}'