add charset.dtd to the obsolete directory

toolkit/obsolete/locale/charset.dtd

@@ -0,0 +1,18 @@
+<!ENTITY charsetMenu.label        "Character Coding">
+<!ENTITY charsetMenu.accesskey        "C">
+<!ENTITY charsetMenuAutodet.label     "Auto-Detect">
+<!ENTITY charsetMenuAutodet.accesskey     "a">
+<!ENTITY charsetMenuMore.label        "More">
+<!ENTITY charsetMenuMore.accesskey        "m">
+<!ENTITY charsetMenuMore1.label       "West European">
+<!ENTITY charsetMenuMore1.accesskey       "w">
+<!ENTITY charsetMenuMore2.label       "East European">
+<!ENTITY charsetMenuMore2.accesskey       "E">
+<!ENTITY charsetMenuMore3.label       "East Asian">
+<!ENTITY charsetMenuMore3.accesskey       "A">
+<!ENTITY charsetMenuMore4.label       "SE &amp; SW Asian">
+<!ENTITY charsetMenuMore4.accesskey       "S">
+<!ENTITY charsetMenuMore5.label       "Middle Eastern">
+<!ENTITY charsetMenuMore5.accesskey       "m">
+<!ENTITY charsetCustomize.label       "Customize...">
+<!ENTITY charsetCustomize.accesskey       "c">