title: SliverChildBuilderDelegate - reverse method
body: <p>Is there a <code>reverse</code> option for a <code>SliverList</code> like there is for <code>ListView.builder</code>?</p>
  
  <p>I can see that the <code>CustomScrollView</code> has a <code>reverse</code> method but that doesn't help for what I'm looking for.</p>