gtktemplate: Don't error out when loading a resource that is only available in an overlay. Fixes #230
gtktemplate: Don't error out when loading a resource that is only available in an overlay. Fixes #230

g_resources_get_info() doesn't do overlays but we use it to verify that the resource
exists. See https://gitlab.gnome.org/GNOME/glib/issues/1445

In case g_resources_get_info() errors out check g_resources_lookup_data() before giving up.

Because glib reads the overlay paths only once at start this is hard to add tests for.

pexip/pygobject,pexip/pygobject,GNOME/pygobject,GNOME/pygobject,GNOME/pygobject,pexip/pygobject