[Skript] Parties [Base] 100% editable messages + commands

This is a base code for a parties Skript, add on as you'd like. This is in no way a completed project, and still needs to be worked on, which is why I consider it a base code. Though it is 100% editable, it still needs a hotbar setup, and party events (such as 1v1, 2v2, etc). depending on whether or not people want me to complete the Skript with party events and a hotbar setup, I will consider it.