Acc > Enable to label the dropdown component

[kolaps33]

Feature Request

Problem description

when dropdown shows up the results, that results has parent element with aria-role list
Would be great if this list is labelled.

Proposed solution

from @silviuavram :
ideally it should be a prop in Dropdown that accepts a shorthand for a future DropdownLabel. Because this way we can leverage Downshift getLabelProps() to label the list and input text.

MVP

[silviuaavram]

Closed as fixed #1446