[Manual] Add scripts and raw wiki

Wiki/tiddlers/$__Macros_b64TidUriEnc.js

@@ -0,0 +1,23 @@
+/*\
+Return the content of a tiddler encoded as [[Base64]] and encapsulated in a data URI.
+<<b64TidUriEnc "Tiddler Name">>
+\*/
+
+(function(){
+"use strict";
+exports.name = "b64TidUriEnc";
+exports.params = [
+	{name: "Name"}
+];
+
+exports.run = function(Name) {
+	try {
+		let Tid = $tw.wiki.getTiddler(Name);
+		let Type = Tid.fields.type || "text/vnd.tiddlywiki";
+		let Data = $tw.utils.base64Encode(Tid.fields.text);
+		return "data:" + Type + ";base64," + Data;
+	} catch(e) {
+		return e;
+	};
+};
+})();