code: function addTemplateRoute(server, scaffold) {
          server.get(scaffold.path, function (req, res, next) {
              const transomTemplate = server.registry.get(scaffold.templateHandler);
              const contentType = scaffold.contentType || 'text/html';
  
              const p = new Promise(function (resolve, reject) {
                  // Push request headers and params into the data going to the template.
                  const data = scaffold.data || {};
                  data.headers = req.headers;
                  data.params = req.params;
  
                  resolve(transomTemplate.renderHtmlTemplate(scaffold.templateName, data));
              }).then(function (pageData) {
                  res.setHeader('content-type', contentType);
                  res.end(pageData);
                  next(false); // false stops the chain.
              }).catch(function (err) {
                  next(err);
              });
          });
      }
docs: Add a GET route that is handled with a template.
  
  @param {*} server - Restify server instance
  @param {*} scaffold