Added new identifiers added in stdnum 1.19 release. https://arthurdejong.org/python-stdnum/doc/1.19/changes#changes-from-1-18-to-1-19
Added new identifiers added in stdnum 1.19 release. https://arthurdejong.org/python-stdnum/doc/1.19/changes#changes-from-1-18-to-1-19