Zabbix

.......... [DEV-2135] refactored libzbxcache libraries part 4 - removed program_type global variable

Merge in ZBX/zabbix from feature/DEV-2135-6.5-4 to master

* commit '5bd18287238e98075936ec70cbfc4f8470794bb5':
  .......... [DEV-2135] fixed after code review
  .......... [DEV-2135] refactored c libzbxcache libraries part 4 - removed program_type global variable