-Fixed grid detection for resource collection from rings (collection was not working correctly for larger rings).

-Removed custom voxel for dummy gas giant planet.

-Added Black Hole skin for planet and rings.
-Added <ShadowOnRingEnabled> option to toggle whether gas giant rings receive planet shadows.
-Fixed math error in ring rotation.

-Updated save system to store Config info in Sandbox.sbc so that all planet info can be restored from backup saves (same change as was made to RealSolarSystems). Does not affect saves retroactively. Can only restore planet info from saves made after this update.
-Must now set <OverrideFromConfig> to true in Config when making changes.

-Converted Config to index planets by "StorageName" rather than "Name".

-Fixes to Gas Giant eclipse logic.

-Remove debug messages.