License type by validity period.
unknown - The system cannot obtain the license type.
permanent - Purchased license that never expires and is always valid.
daysRestricted - Purchased license that is valid for a period in days.
trialDaysRestricted - Free trial license that is valid for
a period in days.
dateRestricted - Purchased license that is valid for an
absolute date range.
trialDateRestricted - Free trial license that is valid for
an absolute date range.
countRestricted - Purchased license that is valid for
several useing times.
trialCountRestricted - Free trial license that is valid for
several useing times.