- Fix duplicate UI for RC Commander and RC Harvester

- Fix off-surface rovers possibly not working

- Improve off-surface gathering and deposition
- Support for RC Constructor and RC Harvester of the Space Race DLC

Handle possible invalid ModConfig configuration value.

Fix thread problems when loading a save without this mod.

Experimental: Allow gathering the above deposits on asteroids and underground

Support Below and Beyond

Add option to gather Waste Rocks.

Added filter for gathering Polymers and/or Metals.

Fix copy-paste error in code, fix icons.