Zabbix

.......... [DEV-2142] refactored libzbxdbwrap and libzbxdbhigh interfaces according to zabbix guidelines

Merge in ZBX/zabbix from feature/DEV-2142-6.3-2 to master

* commit 'c2c00c8cb1b82dfbf09c126605b26f4e4570bf25':
  .......... [DEV-2142] fixed warning in PR
  .......... [DEV-2142] fixed macro
  .......... [DEV-2142] refactored libzbxdbwrap interfaces according to zabbix guidelines
  .......... [DEV-2142] fixed build
  .......... [DEV-2142] fixed tabs
  .......... [DEV-2142] refactored libzbxdbhigh interfaces according to zabbix guidelines