title: Making an SKLabelNode editable
body: <p>I'm trying to figure out a way to bring up the keyboard when an SKLabelNode is tapped and then having that label be editable, similar to UITextView or UITextField.</p>
  
  <p>I've already added a UITextView to the SKScene but as that sits on top of the scene, it's a fairly clunky solution. I'd rather try one of two things: 1. Keyboard appears when sklabelnode is tapped, or as a worst case - keyboard is always up and any input reflects on the SkLabelNode.</p>
  
  <p>In order to not reinvent the wheel, is there a way an SKLabelNode can be customized to act more like UITextView or UITextField? </p>
  
  <p>Answers in Objective-C or Swift would be fine.</p>