message: Make actual network message report low priority status
diff: @@ -79,6 +79,17 @@ impl Payload for Message {
  }
  }
  + fn is_low_priority(&self) -> bool {
  + match self {
  + Message::Consensus(_) => false,
  + Message::DeployGossiper(_) => false,
  + Message::AddressGossiper(_) => false,
  + Message::GetRequest { .. } => true,
  + Message::GetResponse { .. } => false,
  + Message::FinalitySignature(_) => false,
  + }
  + }
  +
  #[inline]
  fn incoming_resource_estimate(&self, weights: &EstimatorWeights) -> u32 {
  match self {
  