Function verify_prepped_main_chain_block 

pub async fn verify_prepped_main_chain_block<D>(
    prepped_block: PreparedBlock,
    txs: Vec<TransactionVerificationData>,
    context_svc: &mut BlockchainContextService,
    verification_context: &mut VerificationContext<D>,
) -> Result<VerifiedBlockInformation, BlockVerificationError>
where
    D: Database + Clone + Send + 'static,

Fully verify a block that has already been prepared using batch_prepare_main_chain_blocks.