Added metal maps for AlienDesert and Vittra.

AlienDesert had one spot with 2.292 metal, all others had 2.355. Now all 2.35.
Vittra had slightly uneven metal values for starting boxes, average was 1.908something. Now all 1.9.
Merge pull request #282 from Skasi/master

Added metal maps for AlienDesert and Vittra.