Added setup function to clicl handler

Runtime/InteractionHandler/ClickHandler.cs

@@ -17,6 +17,12 @@ namespace KairoEngine.UI.InteractionHandler
             if(receiver != null) receiver.OnClick(title);
             //else Debug.LogError("ClickHandler has no receiver!", this.gameObject);
         }
+
+        public void Setup(string title, IClickHandler receiver)
+        {
+            this.title = title;
+            this.receiver = receiver;
+        }
     }
 }