message: Make Ledger.date public for use by jormungandr
diff: @@ -359,6 +359,10 @@ impl Ledger {
  self.chain_length
  }
  + pub fn date(&self) -> BlockDate {
  + self.date
  + }
  +
  fn validate_utxo_total_value(&self) -> Result<(), Error> {
  let old_utxo_values = self.oldutxos.iter().map(|entry| entry.output.value);
  let new_utxo_values = self.utxos.iter().map(|entry| entry.output.value);
  