First pass at the plex update service

PlexRequests.Core/RequestService.cs

@@ -62,6 +62,16 @@ namespace PlexRequests.Core
             Repo.Update(model);
         }
 
+        /// <summary>
+        /// Updates all the entities. NOTE: we need to Id to be the original entity
+        /// </summary>
+        /// <param name="model">The model.</param>
+        /// <returns></returns>
+        public bool BatchUpdate(List<RequestedModel> model)
+        {
+           return Repo.UpdateAll(model);
+        }
+
         public RequestedModel Get(int id)
         {
             return Repo.Get(id);