Add status filter for orphaned packages
New status filter will provide user more abilities to identify unnecessary packages which are not subject to "autoremove"
Use case:
- User installes a list of packages to solve some one-time task
- User solves the task
- User forgets to remove packages that are not necessary anymore.
- Using orphaned status filter user can see which of installed "top level" packeges he/she doesn't need.
Note that now libqapt does not search for orphans .
Possibly another filter icon should be used.