Allow Hit Testing ScrollList Items via API

Problem
-------

Need to be able to hit test scroll list items.

Solution
--------

Add a method to the api.

Unit Tests
----------

Yes

How To +10/QA
-------------

- Travis CI should pass.

@lancefisher-wf @robbecker-wf @patkujawa-wf @georgelesica-wf @tomconnell-wf @todbachman-wf