Initial GpsSatellite support

OpenRa.Game/Traits/GpsSatellite.cs

@@ -0,0 +1,22 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+
+namespace OpenRa.Game.Traits
+{
+	class GpsSatellite
+	{
+		public GpsSatellite(Actor self)
+		{
+			// TODO: connect this to a special power that calls Activate();
+			Activate(self);
+		}
+		
+		public void Activate(Actor self)
+		{
+			// TODO: Launch satellite
+			self.Owner.Shroud.RevealAll();
+		}
+	}
+}