move some more (gameplay related) widgets into mods/

OpenRA.Mods.RA/RadarColorFromTerrain.cs

@@ -6,14 +6,12 @@
  * as published by the Free Software Foundation. For more information,
  * see LICENSE.
  */
-#endregion
+#endregion
+
+using System.Drawing;
+using OpenRA.Traits;
 
-using System.Collections.Generic;
-using System.Drawing;
-using System.Linq;
-using OpenRA.FileFormats;
-
-namespace OpenRA.Traits
+namespace OpenRA.Mods.RA
 {
 	public class RadarColorFromTerrainInfo : ITraitInfo
 	{
@@ -33,6 +31,6 @@ namespace OpenRA.Traits
 		public Color RadarColorOverride(Actor self)
 		{
 			return c;
-		}
+		}
 	}
 }