infrastructure for dealing with client cache invalidation in a multi-user environment

Oqtane.Server/Infrastructure/Interfaces/ISyncManager.cs

@@ -0,0 +1,13 @@
+using Oqtane.Models;
+using Oqtane.Shared;
+using System;
+using System.Collections.Generic;
+
+namespace Oqtane.Infrastructure
+{
+    public interface ISyncManager
+    {
+        List<SyncEvent> GetSyncEvents(DateTime LastSyncDate);
+        void AddSyncEvent(string EntityName, int EntityId);
+    }
+}