The state of an installed license.
invalid - The license is invalid and cannot be used.
inuse - The license is being used.
usable - The license is available for use.
1. If multiple days-restricted licenses for one feature
are installed, only one license is in 'inuse' state and
the rest licenses are in 'usable' state.
2. A date-restricted license is in this state if its
start date is not reached.
expired - The license has expired.
uninstalled - The license has been uninstalled.
unusable - The license cannot be used.