Provider Data on item and NeedsRefresh functionality for providers

MediaBrowser.Controller/Providers/BaseProviderInfo.cs

@@ -0,0 +1,15 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace MediaBrowser.Controller.Providers
+{
+    public class BaseProviderInfo
+    {
+        public Guid ProviderId { get; set; }
+        public DateTime LastRefreshed { get; set; }
+
+    }
+}