message: Add transport_worker_dispatcher to fwd header
diff: @@ -29,6 +29,8 @@ class multiplexer;
  class socket_manager;
  template <class Application, class IdType = unit_t>
  class transport_worker;
  +template <class Application, class IdType>
  +class transport_worker_dispatcher;
  struct network_socket;
  struct pipe_socket;
  