title: Add templateLayout option to tx_news sepecific to view type?
body: <p>Using <code>PageTSConfig</code> I want to add some template options to the tx_news plugin.
  How do I make it so that List template options are only shown when list view is active, and the same for Detail template options?</p>
  <p>I thought it would be something like this:</p>
  <pre><code>tx_news.templateLayouts {
      types {
          list {
              1 = Alt List 
          }
          detail {
              2 = Alt Detail
          }
      }
  }
  </code></pre>