XP Overhaul #275
Pull Request description
This will directly change how PureEntitiesX will utilize experience. This off loads the work of calculating XP for users and handling XP orb entities on to the core server software. this happens by removing all XP calculation code and relying on PocketMine-MP's new experience API. Additionally entities were updated to utilize the same API. this will not change the behavior of entities that previously did not drop experience. That update is expected to happen at a later time.
While initial testing shows that this update should be completely stable, it still needs further evaluation and testing from members of the community. Please download the existing build on Poggit, that corresponds with this pull request.