Add EnableBgp flag to List VirtualNetworkGatewayConnection

Author: clamchowder

src/ServiceManagement/Network/Commands.Network/NetworkClient.cs

@@ -1180,6 +1180,7 @@ public IEnumerable<GetVirtualNetworkGatewayConnectionContext> ListVirtualNetwork
                         GatewayConnectionType = connection.GatewayConnectionType,
                         RoutingWeight = connection.RoutingWeight,
                         SharedKey = connection.SharedKey,
+                        EnableBgp = connection.EnableBgp.ToString(),
                     };
                 });
             PopulateOperationContext(response.RequestId, connections);