Units that have turrets while deployed now move their turrets back to their initial positions before undeploying

- Tested in TS with all deployable units and did a quick check for obvious issues in TD and RA.

OpenRA.Mods.Common/Activities/UndeployForGrantedCondition.cs

@@ -24,8 +24,24 @@ namespace OpenRA.Mods.Common.Activities
 			this.deploy = deploy;
 		}
 
+		protected override void OnFirstRun(Actor self)
+		{
+			var tInfo = self.Info.TraitInfoOrDefault<TurretedInfo>();
+			if (tInfo != null)
+				QueueChild(new WaitForTurretAlignment(self, tInfo.InitialFacing));
+		}
+
 		public override Activity Tick(Actor self)
 		{
+			if (ChildActivity != null)
+			{
+				ActivityUtils.RunActivity(self, ChildActivity);
+				return this;
+			}
+
+			if (IsCanceled)
+				return NextActivity;
+
 			IsInterruptible = false; // must DEPLOY from now.
 			deploy.Undeploy();