GameCore WIP - What's needed?

[ ] Implement ways to create "no teams" game. That means that you can set spawn point for players even without teams (check for teams is already done, just handle it!)
[ ] Implement GameStores! -> load them from YAML and GROOVY, use them while creating game (for preview in GameBuilder)
[ ] Handle teleportAsync (https://github.com/PaperMC/PaperLib/blob/c5b0b97b51de0b2de974bf710ebb724f54bbf5c5/src/main/java/io/papermc/lib/PaperLib.java#L86) - do method for inserting Runnable, if player is teleported, do it now, else add 2 ticks delay
[ ] Debug pasting tool?
[ ] Stress test!
[ ] Make GUI base (inventory skeleton from SimpleInventories for easily creating new inventories)¨
[ ] Check code for possible null pointers and wrap them with ErrorManager

TODO others.

ScreamingSandals / ScreamingLib