fix the remaining issues with the ra desert terrain

- extract mix file as it is easier to work with SHPs
- light palette rotator now excludes terrain palette
- water palette rotator now excludes player palette
- use wire fence, sand bags and brick wall from cnc
- draw ressources with player palette (workaround)
- delete all test maps

mods/ra/rules/system.yaml

@@ -268,7 +268,7 @@ World:
 	ResourceClaimLayer:
 	ResourceType@ore:
 		ResourceType: 1
-		Palette: terrain
+		Palette: player
 		SpriteNames: gold01,gold02,gold03,gold04
 		ValuePerUnit: 25
 		Name: Ore
@@ -277,7 +277,7 @@ World:
 		AllowUnderActors: false
 	ResourceType@gem:
 		ResourceType: 2
-		Palette: terrain
+		Palette: player
 		SpriteNames: gem01,gem02,gem03,gem04
 		ValuePerUnit: 50
 		Name: Gems