Plugin Support

...G...... [ZBX-24245] fixed invalid Zabbix agent 2 and plugin protocol log message

* commit '61c8028d672875c343af944e8b85b547795f8825':
  ...G...... [ZBX-24245] fixed unit test naming
  ...G...... [ZBX-24245] fixed invalid Zabbix agent 2 and plugin protocol log messsage