Zabbix

.......... [DEV-2136] refactored libzbxeval

Merge in ZBX/zabbix from feature/DEV-2136-6.1-1 to master

* commit 'c576cc2985d23d040bca0aac7f81dee33df1af1a':
  .......... [DEV-2136] fixed PR warning
  .......... [DEV-2136] refactored libzbxeval