Added 3 more cases corresponding to checks in TxConfig.execute().
Added 3 more cases corresponding to checks in TxConfig.execute().

alekseysidorov/exonum,exonum/exonum,exonum/exonum,alekseysidorov/exonum,exonum/exonum,alekseysidorov/exonum,exonum/exonum,alekseysidorov/exonum