Zabbix

...G...... [ZBX-21205] added information about JSON in oracle.custom.query response

* commit '5e25ccec61111d12295d435e2eb3b730bfa1db5c':
  ...G...... [ZBX-21205] added changelog entry
  ...G...... [ZBX-21205] corrected word marshall to convert
  ...G...... [ZBX-21205] added information about JSON and oracle.custom.query