title: UIButton with Text Stroke/Outline
body: <p>I would like to draw a <code>UIButton</code> with text that is using an outline i.e. stroke. So I tried to play around with titleLabel making my own custom label and assigning to <code>UIButton.titleLabel</code> which does not work. Someone mentioned I can add <code>UILabel</code> on top of <code>UIButton</code> but I am not sure this solution is good. </p>
  
  <p>Can someone recommend a stable approach to this issue? Thanks.   </p>