Changelog:
* Added skills that players can level up to max of 10. These skills provide discounts on various buildings. You can also lock buildings in the shop until a certain skill level has been reached
* Added netherite tools to all buildings (thanks @-1/12)
* Changed the altar to have new upkeeps for different items. Altar now gives netherite gear in addition to other types of gear
* Fixed the missing items display when building a region
* Fixed a bug with breaking blocks in your region not displaying as missing
* Fixed a bug that crashed the menu when viewing a online member in an offline-mode server
* Fixed various null pointers