Plugin Support

.......... [ZBX-22373] added mixing session and key parameter for Zabbix agent 2 items

* commit '201eec09279b02057a300fa916ca8a2554f2ccd2':
  .......... [ZBX-22373] updated change log
  .......... [ZBX-22373] code clean-up
  .......... [ZBX-22373] allow mixing session and key parameter for Zabbix agent 2 items