[client,signal,management] Add browser client support (#4415)

client/iface/configurer/uapi_js.go

@@ -0,0 +1,23 @@
+package configurer
+
+import (
+	"net"
+)
+
+type noopListener struct{}
+
+func (n *noopListener) Accept() (net.Conn, error) {
+	return nil, net.ErrClosed
+}
+
+func (n *noopListener) Close() error {
+	return nil
+}
+
+func (n *noopListener) Addr() net.Addr {
+	return nil
+}
+
+func openUAPI(deviceName string) (net.Listener, error) {
+	return &noopListener{}, nil
+}