dcrjson: Add GetAccountBalanceResult and GetBalanceResult (#547)
dcrjson: Add GetAccountBalanceResult and GetBalanceResult (#547)


jcmincke/dcrd,jrick/dcrd,decred/dcrd,jrick/btcd,jrick/dcrd,jcmincke/dcrd,jrick/btcd,decred/dcrd,jcmincke/dcrd,jrick/btcd