Cave Tweaks

- Added configuration! This is still a work in progress. The config is located at /config/cave_tweaks.json for both Fabric and Forge. In Fabric, you can customize the configuration in-game using the Mod Menu; this is not available for Forge yet.

- Spaghetti caves are now distorted according to a complex algorithm. Their shapes can vary tremendously by region; there are multiple different variables influencing their shape. There are also regions of spaghetti caves that remain essentially the same as vanilla.

- Spaghetti caves have different types of behavior when they meet the surface. They are usually clamped shut, but they can also expand into large entrances, or anything in between.

- All types of noise caves besides noodle caves can now be disabled in the config.