message: Emit tparam encode/decode at debug log level
  Trace is too low.
  Add logging of encoded values.
  Make the two log messages have the same basic style.
diff: @@ -52,6 +52,7 @@ pub enum TransportParameter {
  impl TransportParameter {
  fn encode(&self, enc: &mut Encoder, tp: TransportParameterId) {
  + qdebug!("TP encoded; type 0x{:02x} val {:?}", tp, self);
  enc.encode_varint(tp);
  match self {
  Self::Bytes(a) => {
  @@ -119,7 +120,7 @@ impl TransportParameter {
  if d.remaining() > 0 {
  return Err(Error::TooMuchData);
  }
  - qtrace!("TP decoded; type {:x} val {:?}", tp, value);
  + qdebug!("TP decoded; type 0x{:02x} val {:?}", tp, value);
  Ok(Some((tp, value)))
  }
  }
  