Add option to have WP Nav Menu auto-add pages regardless of hierarchy

[bergius]

The new Navigation Menu should really allow automatic inclusion of pages regardless of whether they are top-level pages or not.

It wouldn't make sense creating a primary navigation if not every page could be automatically added. And sure, you can use wp_list_pages() or whatever for that, but this feature is still great for managing order and possibly adding links that are not directly connected to pages.

[nacin]

#14331