Update Select2.js

Add New property "DivTemplate" in case user want to have button to add new item


Example:
    $('#ddl').select2({
            DivTemplate: &quot;&lt;div style=&#39;background-color: rgb(171, 168, 168);color: white;font-weight: bold;padding: 0px 3px;cursor: pointer;&#39; onclick=&#39;OpenForm()&#39;&gt; + Add New Item&lt;/div&gt;&quot;
        });