Zabbix

.......... [DEV-2311] refactored zbxserver library

* commit 'c0bfba768855e375c6707bc9782cd6b2b4c7592d':
  .......... [DEV-2311] fixed includes and style issues
  .......... [DEV-2311] renamed header file
  .......... [DEV-2311] extracted event code from libzbxserver
  .......... [DEV-2311] extracted event code from libzbxserver