Function output_to_output_on_chain 

pub fn output_to_output_on_chain(
    output: &Output,
    amount: Amount,
    get_txid: bool,
    tapes: &TapesReadTransaction<'_>,
    db: &BlockchainDatabase,
) -> DbResult<OutputOnChain>

Map an Output to a [cuprate_types::OutputOnChain].