EUCA-5598

  Added VolumeConsumedReadWriteOps, VolumeIdleTime, and modified VolumeQueueLength (for EBS metrics) to take duration into account.
will squash
    EUCA-5598

      Added VolumeConsumedReadWriteOps, VolumeIdleTime, and modified VolumeQueueLength (for EBS metrics) to take duration into account.
Merge branch 'dev/ethomas/EUCA-5598' into testing