Add AS_APP_QUIRK_HAS_SHORTCUT
Add AS_APP_QUIRK_HAS_SHORTCUT

This indicates that an app has a shortcut in the system.

ximion/appstream-glib,ximion/appstream-glib,ikeydoherty/appstream-glib,hughsie/appstream-glib,hughsie/appstream-glib,ximion/appstream-glib,ikeydoherty/appstream-glib,hughsie/appstream-glib