as-content-rating: Add missing OARS → CSM mappings
as-content-rating: Add missing OARS → CSM mappings

These mappings were missing from the table, which could result in
as_content_rating_id_value_to_csm_age() returning 0 for
some #AsContentRatingValues even though it would return >0 for a
less-intense #AsContentRatingValue for the same ID.

Fix that by adding additional mappings. There’s no child psychology
knowledge behind the choices: they’re simply copies of the next age for
the same ID, chosen to avoid exposing young children to content which
the mappings didn’t already explicitly expose them to.

Signed-off-by: Philip Withnall <withnall@endlessm.com>

https://github.com/hughsie/appstream-glib/issues/280

hughsie/appstream-glib,hughsie/appstream-glib,hughsie/appstream-glib