Started reworking the usermanagement page #1456 #865

Started implimenting the Email Token functionality so we can send the user when creating a email with a token they can click on to set their username and password.

src/Ombi.Settings/Settings/Models/OmbiSettings.cs

@@ -7,6 +7,7 @@
         public bool CollectAnalyticData { get; set; }
         public bool Wizard { get; set; }
 
+        public string ExternalUrl { get; set; }
         public string ApiKey { get; set; }
     }
 }