Zabbix

.......... [DEV-1720] save Problems and Hosts filters

Merge in ZBX/zabbix from feature/DEV-1720-5.2 to release/5.2

* commit 'ebcbe0d57b21c7a4be648e997e7c9bbef5c672de':
  .......... [DEV-1720] removed unnecessary variable
  .......... [DEV-1720] renaming functions
  .......... [DEV-1720] removing comment
  .......... [DEV-1720] fix after review
  .......... [DEV-1720] removing extra line
  .......... [DEV-1720] removing comment
  .......... [DEV-1720] changing data provider values, to avoid jenkins issue
  .......... [DEV-1720] adding waitingpge, for jenkins checks
  .......... [DEV-1720] removing sleep
  .......... [DEV-1720] fixed getting row count condition, try to stabilize test
  .......... [DEV-1720] stabilized test
  .......... [DEV-1720] optimized test code, added some minor style fixes
  .......... [DEV-1720] fixing fucntions comments
  .......... [DEV-1720] fixing fucntions comments
  .......... [DEV-1720] adding 1 sec sleep
  .......... [DEV-1720] fixing filter test
  .......... [DEV-1720] small refactoring
  .......... [DEV-1720] new fitler tests