Add 1.3-beta1

1.3-beta1/MenuSocials.cs

@@ -0,0 +1,12 @@
+using UnityEngine;
+using UnityEngine.EventSystems;
+
+public class MenuSocials : MonoBehaviour, IPointerClickHandler, IEventSystemHandler
+{
+    public string URL;
+
+    public void OnPointerClick(PointerEventData eventData)
+    {
+        Application.OpenURL(URL);
+    }
+}