Add missing fields in TransactionDescriptionString and others
Add missing fields in TransactionDescriptionString and others

Fields involvesWatchonly, generated, walletconflicts were missing
in result description of listtransactions, listsinceblock,
gettransaction

Align getttransaction fields which were odd compare to other rpc
helpers


Former-commit-id: 726466ad7ed604d2615fa5a5e5b5155fea690cab
syscoin/syscoin2,syscoin/syscoin2,syscoin/syscoin,syscoin/syscoin,syscoin/syscoin,syscoin/syscoin2,syscoin/syscoin,syscoin/syscoin,syscoin/syscoin2,syscoin/syscoin2,syscoin/syscoin2,syscoin/syscoin,syscoin/syscoin,syscoin/syscoin