message: [config][management] clarify network address related errors
  Closes:
  Approved by: gregnazario
diff: @@ -63,25 +63,45 @@ impl ValidatorConfig {
  let addr_idx = 0;
  // append ln-noise-ik and ln-handshake protocols to base network addresses
  + // and encrypt the validator address.
  let validator_address = self
  .validator_address
  .clone()
  .append_prod_protos(validator_network_key, HANDSHAKE_VERSION);
  - let raw_validator_address = RawNetworkAddress::try_from(&validator_address)
  - .map_err(|e| Error::UnexpectedError(format!("(raw_validator_address) {}", e)))?;
  + let raw_validator_address =
  + RawNetworkAddress::try_from(&validator_address).map_err(|e| {
  + Error::UnexpectedError(format!(
  + "error serializing validator address: \"{}\", error: {}",
  + validator_address, e
  + ))
  + })?;
  let enc_validator_address = raw_validator_address
  .encrypt(&root_key, key_version, &sender, sequence_number, addr_idx)
  - .map_err(|e| Error::UnexpectedError(format!("(enc_validator_address) {}", e)))?;
  + .map_err(|e| {
  + Error::UnexpectedError(format!(
  + "error encrypting validator address: \"{}\", error: {}",
  + validator_address, e
  + ))
  + })?;
  let raw_enc_validator_address = RawEncNetworkAddress::try_from(&enc_validator_address)
  - .map_err(|e| Error::UnexpectedError(format!("(raw_enc_validator_address) {}", e)))?;
  + .map_err(|e| {
  + Error::UnexpectedError(format!(
  + "error serializing encrypted validator address: {:?}, error: {}",
  + enc_validator_address, e
  + ))
  + })?;
  let fullnode_address = self
  .fullnode_address
  .clone()
  .append_prod_protos(fullnode_network_key, HANDSHAKE_VERSION);
  - let raw_fullnode_address = RawNetworkAddress::try_from(&fullnode_address)
  - .map_err(|e| Error::UnexpectedError(format!("(raw_fullnode_address) {}", e)))?;
  + let raw_fullnode_address = RawNetworkAddress::try_from(&fullnode_address).map_err(|e| {
  + Error::UnexpectedError(format!(
  + "error serializing fullnode address: \"{}\", error: {}",
  + fullnode_address, e
  + ))
  + })?;
  // Step 2) Generate transaction
  