Support for QNAP ES1640DC v2

Dear sirs,

I would like your help, in order to add Observium support to the device QNAP ES1640DC v2. Attached you will find the MIB file associated with it.

As it is a BSD Supported device, many features are automatically discovered. However, as this is a SAN (Storage Attached Network) device, information regarding LUN and individual Hard-disks status are not. I am convinced this is a "simple" fix from your part.

In summary, I would like to see information (and create alerts) about LUNS and Health about individual hard-drives.

Thanks for your time and help.

Best regards.