This fixture adds all known countries of the world to your database.
The countries.xml is an unmodified copy of http://users.pandora.be/bosteels/countries.xml
TODO: Estonian names. Maybe from https://et.wikipedia.org/wiki/ISO_maakoodide_loend
TABLE2 contains 4-letter codes for countries that no longer exist. This is mostly based on <http://www.davros.org/misc/iso3166.html>, but one country (DEDE) was added.
extends this data by attaching Belgian INS codes to these countries.