Zabbix

...G...... [ZBX-26344] refactored zbxcmd execute to avoid windows syscalls in Zabbix agent 2

* commit '638ecca6adbd494835748fa15dd4317774b771dd':
  ...G...... [ZBX-26344] added change log
  ...G...... [ZBX-26344] fixed some typos and code clean-up
  ...G...... [ZBX-26344] implemented unix execution
  ...G...... [ZBX-26344] added unit tests and fixed windows execution
  ...G...... [ZBX-26344] refactored zbxcmd execute to avoid windows syscalls in Zabbix agent 2

(cherry picked from commit de364de1a6782ccc4d7c538723ec33f2e0f60012)