Zabbix

.......... [DEV-1718] added new SNMP interfaces fields to Test item tests

* commit 'd90ae13566ba80f48cff1423f97aa2e33fa548aa':
  .......... [DEV-1718] fixed after review
  .......... [DEV-1718] fixed after review
  .......... [DEV-1718] added cases to fix unused code
  .......... [DEV-1718] added macro for snmp cases
  .......... [DEV-1718] added snmp cases to test item test
  .......... [DEV-1718] fixed test preprocessing tests
  .......... [DEV-1718] fixed test item tests

(cherry picked from commit 3328ad1753cc4a1b4b949548babb416214351f54)