Adding SignalR components to the Ntlm based Startup class.

Missed to do this with previous checkin.

src/MusicStore/StartupNtlmAuthentication.cs

@@ -104,8 +104,14 @@ namespace MusicStore
 
                 // Add MVC services to the services container
                 services.AddMvc();
+
+                //Add all SignalR related services to IoC.
+                services.AddSignalR();
             });
 
+            //Configure SignalR
+            app.UseSignalR();
+
             // Add static files to the request pipeline
             app.UseStaticFiles();