Split up non skyblock related features into another mod that is bundled by firmament

[lineargraph]

This won't remove any features from firmament, but instead allow people who want to use some features on non skyblock servers to use a slimmed down version of it.

Feel free to comment any other features you might want in a :

• [ ] Toggle sprint
• [ ] Custom textures (excluding any skyblock specific predicates)
• [ ] The custom ender chest overlay (but customizable for any command like /pv /vault or what other servers might call it)
• [ ] Chat image links
• [ ] Chat waypoints

[Sepurmetal]

maybe custom skull?