The mega cruft proxy PR (#974)

* the mega cruft proxy PR

* Rename broker id

* add protocol=grpc

* fix compilation breaks

* Add the tunnel broker to the network

* fix broker id

* continue to be backwards compatible in the protocol

util/mux/mux.go

@@ -22,6 +22,13 @@ var (
 	once sync.Once
 )
 
+func (s *Server) ProcessMessage(ctx context.Context, msg server.Message) error {
+	if msg.Topic() == s.Name {
+		return server.DefaultRouter.ProcessMessage(ctx, msg)
+	}
+	return s.Proxy.ProcessMessage(ctx, msg)
+}
+
 func (s *Server) ServeRequest(ctx context.Context, req server.Request, rsp server.Response) error {
 	if req.Service() == s.Name {
 		return server.DefaultRouter.ServeRequest(ctx, req, rsp)