refactor Site Groups

Oqtane.Shared/Models/SiteGroup.cs

@@ -20,6 +20,16 @@ namespace Oqtane.Models
         /// </summary>
         public int SiteId { get; set; }
 
+        /// <summary>
+        /// Specifies the site synchronization approach (false = compare, true = update)
+        /// </summary>
+        public bool Synchronize { get; set; }
+
+        /// <summary>
+        /// Indicates if the site administrator should be notified of any synchronization activity
+        /// </summary>
+        public bool Notify { get; set; }
+
         /// <summary>
         /// The last date/time the site was synchronized
         /// </summary>