move ActorGroupProxy to mod; move SupportPower traits into directory

OpenRA.Mods.RA/Player/ActorGroupProxy.cs

@@ -0,0 +1,27 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+
+namespace OpenRA.Traits
+{
+	class ActorGroupProxyInfo : TraitInfo<ActorGroupProxy> { }
+
+	class ActorGroupProxy : IResolveOrder
+	{
+		public void ResolveOrder(Actor self, Order order)
+		{
+			if (order.OrderString == "CreateGroup")
+			{
+				/* create a group */
+				var actors = order.TargetString.Split(',')
+					.Select(id => uint.Parse(id))
+					.Select(id => self.World.Actors.FirstOrDefault(a => a.ActorID == id))
+						.Where(a => a != null);
+
+				var g = new Group(actors);
+			//	g.Dump();
+			}
+		}
+	}
+}