OPItems

OPItems very small update

- Added item: Piercer: Shoots throught Entities

- Improved the Server-UUID-Generator

- Sorted Configs into logical groups

- Added a small bit of data-collection (see Additional Information) to decide the future ways of this plugin (e.g.: Is the 1.16 Version really used or is it feasible to update it to 1.17+?)

- The Changelog will not be included in the plugin directly anymore. It will now display a link to the Changelog

- Fix CursedSword Data deleting itself