Feature/find closest spawn

Merged username-removed-1376118 requested to merge feature/findClosestSpawn into dev

Had a case where I unclaimed a room and wanted to recycle the workers/haulers in that room. Since that room no longer had a valid spawn they would just sit idle.

Add a helper to use PathFinder, and then also add this too Creep.action.recycling. If those prototypes should be elsewhere, let me know.

Edited by username-removed-1376118