maint: added livewatch asset

Assets/Plugins/LiveWatchLite/TowerDefenceDemo/Scripts/Slot/ClickableObject.cs

@@ -0,0 +1,16 @@
+using System;
+using UnityEngine;
+using UnityEngine.EventSystems;
+
+namespace Ingvar.LiveWatch.TowerDefenceDemo
+{
+    public class ClickableObject : MonoBehaviour
+    {
+        public event Action Clicked;
+        
+        private void OnMouseDown()
+        {
+            Clicked?.Invoke();
+        }
+    }
+}