feat: Waku v2 bridge

Issue #12610

vendor/github.com/pion/turn/v2/internal/proto/data.go

@@ -0,0 +1,30 @@
+package proto
+
+import "github.com/pion/stun"
+
+// Data represents DATA attribute.
+//
+// The DATA attribute is present in all Send and Data indications.  The
+// value portion of this attribute is variable length and consists of
+// the application data (that is, the data that would immediately follow
+// the UDP header if the data was been sent directly between the client
+// and the peer).
+//
+// RFC 5766 Section 14.4
+type Data []byte
+
+// AddTo adds DATA to message.
+func (d Data) AddTo(m *stun.Message) error {
+	m.Add(stun.AttrData, d)
+	return nil
+}
+
+// GetFrom decodes DATA from message.
+func (d *Data) GetFrom(m *stun.Message) error {
+	v, err := m.Get(stun.AttrData)
+	if err != nil {
+		return err
+	}
+	*d = v
+	return nil
+}