Zabbix

.........T [ZBXNEXT-6489] added template for Huawei OceanStor 5300 V5

Merge in ZBX/zabbix from feature/ZBXNEXT-6489-5.3 to master

* commit '9befbca0ff2f741f6d731c46db7b8992445c19fa':
  .........T [ZBXNEXT-6489] fixed template's group
  .........T [ZBXNEXT-6489] updated value maps for 5.4
  .........T [ZBXNEXT-6489] fixed application for calculated item
  .........T [ZBXNEXT-6489] removed {#CPU}
  .........T [ZBXNEXT-6489] fixed after review
  .........T [ZBXNEXT-6489] added forum link and fixed typo
  .........T [ZBXNEXT-6489] added template for Huawei OceanStor 5300 V5