title: How to pass two arguments to AppListView separator
body: <p>I would like to display AppListView with separators of custom delegates. Separators should have 2 properties - color defined as string and text also defined as a string - both coming from my model as roles and they always come in pairs so for example</p>
  <ul>
  <li>if color is <code>#b3b3b3</code> text is always <code>AA</code>,</li>
  <li>if color is <code>#eeeeee</code> text is always <code>BB</code>.</li>
  </ul>
  <p>I cannot find any option to pass two arguments to my section, so I can make both color and text to be displayed on my separator.</p>
  <p>For those who prefer code:</p>
  <pre><code>AppListView {
    id: list
    section {
      property: &quot;separatorTextRole&quot;        /* here I set my first role to be separator property */
      criteria: ViewSection.FullString
      delegate: CustomSeparatorDelegate {
        itemColor:                         /* how can I pass also my separatorColorRole here? */
        itemText: section                  /* here I access my separatorTextRole */
      }
    }
    delegate: CustomListDelegate {
      text: nameRole
      row: rowRole
      value: valueRole
    }
  }
  </code></pre>