Zabbix

.......... [DEV-2653] replaced DBexecute commands used for problem and event creation

Merge in ZBX/zabbix from feature/DEV-2653-6.4 to release/6.4

* commit '298b756ad6a3311b5c973fb75f0694118c9c5efc':
  .......... [DEV-2653] fixed API parameter
  .......... [DEV-2653] added fixes regarding code review
  .......... [DEV-2653] added problem and event creation method, removed DBexecute commands