feat(dcl): rename Configuration to PrimaryConfiguration, add BackupConfiguration and FailoverRetryCount

src/ScadaLink.TemplateEngine/Flattening/FlatteningService.cs

@@ -90,7 +90,7 @@ public class FlatteningService
                         connections[attr.BoundDataConnectionName] = new ConnectionConfig
                         {
                             Protocol = conn.Protocol,
-                            ConfigurationJson = conn.Configuration
+                            ConfigurationJson = conn.PrimaryConfiguration
                         };
                     }
                 }