Fireplace Lib

Improving the buildscript Added a generic formula parser Added a generic config GUI registry/entrypoint as a replacement for Mod Menu's entrypoint - provides a consistent entrypoint across versions, and will be used for more config improvements down the line. Added a way to append a custom tooltip to a config GUI entry Added a utility to find GameProfile using player ID or Name Fix occasional RejectedExecutionException when shutting down the server with concurrent tasks running