Flag images for 249 countries with ISO 3166 codes

From https://github.com/joielechong/iso-country-flags-svg-collection.
(States that flag images are public domain)

cockatrice/resources/countries/lu.svg

@@ -1,7 +1,36 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<svg xmlns="http://www.w3.org/2000/svg" width="1000" height="600">
-<rect width="1000" height="300" y="300" fill="#00A1DE
-"/>
-<rect width="1000" height="300" fill="#ed2939"/>
-<rect width="1000" height="200" y="200" fill="#fff"/>
-</svg>
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<!-- Created with Sodipodi ("http://www.sodipodi.com/") -->
+<!--
+On October 30, 2003, Brett Roper dedicated to the public domain the
+work "SVG graphic of Luxembourg Flag." Before making the dedication,
+Brett Roper represented that Brett Roper owned all copyrights in the
+work. By making the dedication, Brett Roper made an overt act
+of relinquishment in perpetuity of all present and future rights under
+copyright law, whether vested or contingent, in "SVG graphic of
+Luxembourg Flag."
+ 
+Brett Roper understands that such relinquishment of all rights
+includes the relinquishment of all rights to enforce (by lawsuit or
+otherwise) those copyrights in the Work.
+ 
+Brett Roper recognizes that, once placed in the public domain,
+"SVG graphic of Luxembourg Flag" may be freely reproduced,
+distributed, transmitted, used, modified, built upon, or otherwise exploited by anyone for any
+purpose, commercial or non-commercial, and in any way, including by
+methods that have not yet been invented or conceived.
+-->
+<svg id="canada" xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#" xmlns="http://www.w3.org/2000/svg" fill-opacity="14.118" height="480" width="640" version="1.1" xmlns:cc="http://creativecommons.org/ns#" xmlns:dc="http://purl.org/dc/elements/1.1/" fill="#28ff09">
+ <metadata id="metadata3365">
+  <rdf:RDF>
+   <cc:Work rdf:about="">
+    <dc:format>image/svg+xml</dc:format>
+    <dc:type rdf:resource="http://purl.org/dc/dcmitype/StillImage"/>
+   </cc:Work>
+  </rdf:RDF>
+ </metadata>
+ <g id="flag" fill-rule="evenodd" fill-opacity="1" transform="matrix(.86011 0 0 .96762 0 .000014672)">
+  <rect id="rect569" height="166.06" width="744.09" y="-.000015260" x="0" fill="#f00"/>
+  <rect id="rect570" height="166.25" width="744.09" y="166.06" x="0" fill="#fff"/>
+  <rect id="rect571" height="163.75" width="744.09" y="332.31" x="0" fill="#0098ff"/>
+ </g>
+</svg>