title: Transfer data attributes from option tags to UI selectmenu items
body: <p>I need to transfer all data-attributes from option tags to to UI selectmenu items (li tags). How do this with API ? </p>
  
  <pre><code>&lt;select class="select" id="" name="PROPERTY[126]"&gt;
    &lt;option value="315" data-filter="flat"&gt;Квартира&lt;/option&gt;
    &lt;option value="316" data-show="standart" data-filter="room"&gt;Комната&lt;/option&gt;
    &lt;option value="317" data-filter="house" data-hide="standart flat room uchastok" data-show="house zarub elite"&gt;Коттедж&lt;/option&gt;
    &lt;option value="318" data-filter="uchastok" data-show="zarub uchastok elite" data-hide="standart flat room house"&gt;Участок&lt;/option&gt;
    &lt;option value="319" data-filter="zarub" data-show="elite" data-hide="standart"&gt;Зарубежная недвижимость&lt;/option&gt;
  &lt;/select&gt;
  
  &lt;script&gt;$("select").selectmenu()&lt;/script&gt;
  </code></pre>