Add namespace translations for gcr

Namespace translations for Guianan Creole language, as reported on
https://incubator.wikimedia.org/wiki/Talk:Wp/gcr#Approval

Bug: T238107
Change-Id: Id2552ac212b729689a4bf73f4c065d32697e63cc

languages/messages/MessagesGcr.php

@@ -5,6 +5,27 @@
  *
  * @ingroup Language
  * @file
+ *
+ * @author Léon973
  */
 
 $fallback = 'fr';
+
+$namespaceNames = [
+	NS_MEDIA            => 'Médja',
+	NS_SPECIAL          => 'Èspésyal',
+	NS_TALK             => 'Diskisyon',
+	NS_USER             => 'Itilizatò',
+	NS_USER_TALK        => 'Diskisyon_itilizatò',
+	NS_PROJECT_TALK     => 'Diskisyon_$1',
+	NS_FILE             => 'Fiché',
+	NS_FILE_TALK        => 'Diskisyon_fiché',
+	NS_MEDIAWIKI        => 'MediaWiki',
+	NS_MEDIAWIKI_TALK   => 'Diskisyon_MediaWiki',
+	NS_TEMPLATE         => 'Modèl',
+	NS_TEMPLATE_TALK    => 'Diskisyon_modèl',
+	NS_HELP             => 'Lèd',
+	NS_HELP_TALK        => 'Diskisyon_lèd',
+	NS_CATEGORY         => 'Katégori',
+	NS_CATEGORY_TALK    => 'Diskisyon_katégori',
+];