Support WS* Bindings to allow interop with federated WCF services

Customer has a large deployment of WCF services that use _WsHttpBinding_ & _WsFederationHttpBinding_. They are currently developing.NET Core based front-end Web APIs (using ASP.NET 5) that would have to consume these services. Without support for these WS-\* bindings, there is no way to call these services securely using federated security. Enabling WS-\* on the WCF client would enable these interop scenarios for large enterprises.