Zabbix

.......PS. [ZBXNEXT-5690] added support for libssh

* commit '7d09dce2c8388419e3fd932b32e4303ad73f0bc8':
  .......... [ZBXNEXT-5690] added jenkins build target
  .......... [ZBXNEXT-5690] improved bytecount logging for ssh_run
  .......PS. [ZBXNEXT-5690] code review rework
  .......PS. [ZBXNEXT-5690] code review rework
  .......PS. [ZBXNEXT-5690] minor coding guideline fixes & typos
  .......PS. [ZBXNEXT-5690] fixes for keyboard-interactive authentification
  .......PS. [ZBXNEXT-5690] remove debug code
  .......PS. [ZBXNEXT-5690] added support for libssh