ENSCORESW-544: updated lookup method

stable_id_lookup is a separate public method
added archive_id_lookup method, which will look for the stable id in the archive_id_lookup table
the generic lookup method now calls stable_id_lookup
if no stable_id is found and $use_archive argument is given, the generic lookup will attempt to find the stable id
in the archive_id_lookup, ie amongst the retired ids
if a stable id is found using this, a 'retired' flag is returned as well