use parent for creating namespaces instead of parent_id
use parent for creating namespaces instead of parent_id

we end up doing a couple of lookups if id is passed in.
No reason to not pass in the parent since that is already in memory

ManageIQ/manageiq-ui-classic,ManageIQ/manageiq-ui-classic,ManageIQ/manageiq-ui-classic,ManageIQ/manageiq-ui-classic