Update getRunTimeId

Author: pqnga

src/FlaUI.WebDriver/Controllers/SourceController.cs

@@ -83,7 +83,7 @@ private void WriteElementToXml(XmlWriter writer, AutomationElement element, Syst
             WritePropertyAttribute(writer, "Name", element.Properties.Name);
             WritePropertyAttribute(writer, "Orientation", element.Properties.Orientation);
             WritePropertyAttribute(writer, "ProcessId", element.Properties.ProcessId);
-            WritePropertyAttribute(writer, "RuntimeId", element.Properties.RuntimeId);
+            WritePropertyAttribute(writer, "RuntimeId", Session.GetRuntimeId(element));
 
             var bounds = element.BoundingRectangle;
             writer.WriteAttributeString("x", (bounds.X - rootBounds.X).ToString());

src/FlaUI.WebDriver/Session.cs

@@ -172,7 +172,7 @@ public void Dispose()
             App?.Dispose();
         }
 
-        private string? GetRuntimeId(AutomationElement element)
+        public static string? GetRuntimeId(AutomationElement element)
         {
             if (!element.Properties.RuntimeId.IsSupported)
             {