Zabbix

.........T [ZBXNEXT-7507] added TrueNAS template

Merge in ZBX/zabbix from feature/ZBXNEXT-7507-6.0 to release/6.0

* commit '6d98755cbec6d9bd203966c71937966783cd8800':
  .........T [ZBXNEXT-7507] added graph prototype to truenas template
  .........T [ZBXNEXT-7507] fixed trigger names in truenas tempate
  .........T [ZBXNEXT-7507] added items to TrueNAS template
  .........T [ZBXNEXT-7507] fixed keys and descriptions in TrueNAS template
  .........T [ZBXNEXT-7507] fixed trigger uuid in TrueNAS template
  .........T [ZBXNEXT-7507] added TrueNAS template