Add a Studio view and template to host the Programs authoring app

The Programs authoring app is a Backbone SPA maintained in a separate repository. The app handles its own routing and provides a UI which can be used to create and publish new Programs (e.g, XSeries). ECOM-2598.

cms/templates/widgets/header.html

@@ -187,6 +187,11 @@
           </li>
         </ol>
       </nav>
+      % elif show_programs_header:
+      <h2 class="info-course">
+        <span class="course-org">${settings.PLATFORM_NAME}</span><span class="course-number">${_("Programs")}</span>
+        <span class="course-title">${_("Program Administration")}</span>
+      </h2>
       % endif
     </div>