Update below parameters in Zabbix template

* Add some average item
    + The purpose is to round each values
        - Average PutRecord Bytes
        - Average PutRecord Success
        - Average GetRecords Bytes
        - Average GetRecords Success

* Change default macro values
    + Diff threshold at warning level
        - 20 -> 40
    + Diff threshold at average level
        - 40 -> 60