fixes:
- fixed really important blocks dupe bugs, please update
- fixed invisible fire PLEASE REGEN YOUR PACK USING /iazip command.
- fixed inventory titles not replacing correctly if user has no permission, it was a wrong behaviour as I don't need to check permission in this case.
- fixed 1.15.2 compatibility when loading blocks
- now if you delete some of the mandatory resourcepack files itemsadder will extract them again for you