Get an account ID given a secret passphrase or public key. POST only.
Request:requestType is getAccountIdsecretPhrase is the secret passphrase of the account (optional if publicKey provided)
publicKey is the public key of the account (optional if secretPhrase provided)
Response:
(S) accountRS is the Reed-Solomon address of the account
(S) publicKey is the public key of the account
(N) requestProcessingTime is the API request processing time (in millisec)
(S) account is the account number