Finish theif logic. TODO: Determine amount to steal

OpenRa.Game/Traits/Thief.cs

@@ -0,0 +1,29 @@
+using OpenRa.Game.Traits.Activities;
+using System.Collections.Generic;
+using System.Linq;
+namespace OpenRa.Game.Traits
+{
+	class Thief : IOrder
+	{
+		public Thief(Actor self) { }
+
+		public Order IssueOrder(Actor self, int2 xy, MouseInput mi, Actor underCursor)
+		{
+			if (mi.Button != MouseButton.Right) return null;
+			if (underCursor == null) return null;
+			if (!underCursor.traits.WithInterface<IAcceptThief>().Any()) return null;
+			
+			return new Order("Steal", self, underCursor, int2.Zero, null);
+		}
+
+		public void ResolveOrder(Actor self, Order order)
+		{
+			if (order.OrderString == "Steal")
+			{
+				self.CancelActivity();
+				self.QueueActivity(new Move(order.TargetActor, 1));
+				self.QueueActivity(new Steal(order.TargetActor));
+			}
+		}
+	}
+}