Zabbix

...G...... [ZBXNEXT-5671] added zabbix_js command line utility for javascript testing

* commit 'a6fde3046f174703d4e71fb2dd8f91549a8580ce':
  .......... [DEV-1279] fixed compilation of Zabbix agent without Zabbix server and Zabbix proxy
  .......... [DEV-1279] improved usage message
  .......... [DEV-1279] added version information
  .......... [DEV-1279] improved help message to include standard input
  .......... [DEV-1279] fixed semaphore leak
  .......... [DEV-1279] avoid NULL pointer dereference when script file is empty
  .......... [DEV-1279] avoid NULL pointer dereference when file is empty
  .......... [DEV-1279] removed redundant check
  .......... [DEV-1279] added ability to display help message; added example to help message
  .......... [DEV-1279] fixed compilation with TLS
  .......... [DEV-1279] fixed rebase and added ZBX_FALLTHROUGH to switch case
  .......... [DEV-1279] removed extra space from help message
  ...G...... [DEV-1279] added timeout option
  ...G...... [DEV-1279] renamed zabbix_es to zabbix_js
  .......... [DEV-1279] add zabbix_es utility for embedded script testing

(cherry picked from commit f2584a23004de5c97790a9909a08efe6eb96e6d0)