message: Check stream is bidi before creating a send stream
  The comment says this is conditional but the code always did it.
diff: @@ -1227,6 +1227,7 @@ impl Connection {
  );
  // If this is bidirectional, insert a send stream.
  + if stream_id & 0x01 == 0 {
  let send_initial_max_stream_data = self
  .tps
  .borrow()
  @@ -1243,6 +1244,7 @@ impl Connection {
  ),
  );
  }
  + }
  // Finally, let's process some data.
  self.recv_streams
  