decodeSignedTransaction takes a Buffer (from transaction.signTxn) and converts it to an object
containing the Transaction (txn), the signature (sig), and the auth-addr field if applicable (sgnr)
Returns
containing a Transaction, the signature, and possibly an auth-addr field
decodeSignedTransaction takes a Buffer (from transaction.signTxn) and converts it to an object containing the Transaction (txn), the signature (sig), and the auth-addr field if applicable (sgnr)
Returns
containing a Transaction, the signature, and possibly an auth-addr field