This object indicates the time period remaining before
the feature's license expires. This object is applicable
only if clmgmtLicenseType of the license used by this
feature is demo(1), or extension(2) or gracePeriod(3).
The object will contain 0 if other types of license is used
or if the feature does not use any license. If the
feature is using multiple licenses, this period will
represent the cumulative period remaining from all the
licenses used by this feature.