Added configuration to the multinode picker

src/Umbraco.Web/PropertyEditors/MultiNodeTreePickerPropertyEditor.cs

@@ -0,0 +1,20 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using Umbraco.Core;
+using Umbraco.Core.PropertyEditors;
+
+namespace Umbraco.Web.PropertyEditors
+{
+    [PropertyEditor(Constants.PropertyEditors.MultiNodeTreePickerAlias, "Multinode Treepicker", "contentpicker")]
+    public class MultiNodeTreePickerPropertyEditor : PropertyEditor
+    {
+       
+        protected override PreValueEditor CreatePreValueEditor()
+        {
+            return new MultiNodePickerPreValueEditor();
+        }
+    }
+}