Zabbix

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

* commit '774f5f3b71e968936de60bb9470a61b137874f3a':
  ...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