Zabbix

.......... [DEV-2239] added test cases for editable tags on host prototype

Merge in ZBX/zabbix from feature/DEV-2239-6.3 to master

* commit '888cb76a72d1651da91354ef472c16ae675ef768':
  .......... [DEV-2239] added constant
  .......... [DEV-2239] added inheited tags and test scenarios to discovered host
  .......... [DEV-2239] added inherited tag test case
  .......... [DEV-2239] fixed tag-table query
  .......... [DEV-2239] fixed tags names
  .......... [DEV-2239] small fix
  .......... [DEV-2239] small fix
  .......... [DEV-2239] added discovered host tags checks