Further Transaction Failure Improvements

[utkarshg6]

Introduce Following errors:

    // Before sending the transactions, check for latest_nonce,
    // if latest_nonce + 1 != tx_nonce, return NonceIssue
    // here tx_nonce is the smallest nonce of batch txs.
    NonceIssue {
        latest_nonce: u64,
        tx_nonce: u64,
    },
    // After recognising that the transaction was successful,
    // check transaction with same nonce and mark it as failed.
    OrphanedTx {
        winning_tx_hash: TxHash,
        winning_block_number: u64,
    },