Zabbix

.......... [DEV-2291] added new test for problems widget

Merge in ZBX/zabbix from feature/DEV-2291-6.0 to release/6.0

* commit '56f2e34f7848840a3ebedd610c37a05df2abe464': (33 commits)
  .......... [DEV-2291] deleted trailing comma
  .......... [DEV-2291] added one more case
  .......... [DEV-2291] fixed test after review
  .......... [DEV-2291] fixed headers array
  .......... [DEV-2291] added Show field check
  .......... [DEV-2291] fixed formatting
  .......... [DEV-2291] fixed time
  .......... [DEV-2291] added more checks for widget table
  .......... [DEV-2291] fixed formatting
  .......... [DEV-2291] fixed after review
  .......... [DEV-2291] fixed code style
  .......... [DEV-2291] fixed tags filling and code style
  .......... [DEV-2291] fised styling
  .......... [DEV-2291] deleted trailing comma
  .......... [DEV-2291] added table header check
  .......... [DEV-2291] added more cases
  .......... [DEV-2291] fixed query
  .......... [DEV-2291] added wait for widget
  .......... [DEV-2291] fixed sql
  .......... [DEV-2291] fixed widget remove
  ...

(cherry picked from commit 317c35e73c81ee0c1b615462b147930d378b9035)