Introducing per-player shrouds.

- Each player has their own shroud and their visibility does not extend outside of the shroud. 
- Units and buildings can no longer target other units outside of their visibility. Buildings can still be targetted if they have been explored.
- GPS will provide visibility in the fog-of-war.
- Spies that infiltrate radar domes will gain their victim's exploration and reset it on all clients (if the victim does not have GPS)

OpenRA.Mods.RA/ChronoshiftDeploy.cs

@@ -97,7 +97,7 @@ namespace OpenRA.Mods.RA
 			if (chargeTick <= 0 // Can jump
 				&& (self.Location - xy).Length <= Info.JumpDistance // Within jump range
 				&& movement.CanEnterCell(xy) // Can enter cell
-				&& (ignoreVis || self.World.LocalShroud.IsExplored(xy))) // Not in shroud						
+				&& (ignoreVis || self.Owner.Shroud.IsExplored(xy))) // Not in shroud						
 				return true;
 			else
 				return false;