Use nbt for banners. For some reason nbt tags are still sometimes
removed when item is in inventory.
Should be here too
Fix banner item meta serialization
Transform CraftItemFactory too. That fixes banners completely. Now just
need to fix the recipe so it will support base nbt tag.
Add base tag on banner pattern craft
Forgot to push instrumented CraftItemFactory
Banners should now sway even on old worlds. At least i hope so.
Wrong field
Merge upstream again