[Structure] Add comments to temporary files

Add clarifying comments to temporary files, to
ensure they are distinguishable as placeholders.
Part of developing project folder structure and
build for WTD-519.

platform/framework/test/TemporarySpec.js

@@ -9,7 +9,7 @@ define(
             var temporary = new Temporary();
 
             it("has a method with a return value", function () {
-                expect(temporary.someMethod()).toEqual("returnValue");
+                expect(temporary.someMethod()).toEqual("Hello, world.");
             });
         });