title: Is it possible to rotate a Node around an arbitrary point in SpriteKit?
body: <p>Is there a way to rotate a Node in SpriteKit around an <strong>arbitrary point</strong>?
  I now I can manipulate the <code>anchorPoint</code> of my Node, but that is not sufficient if the rotation point I want to use lies outside of the Node.</p>
  
  <p><img src="https://i.stack.imgur.com/irlly.png" alt="enter image description here"></p>
  
  <p><strong>What is the best way to achieve this kind of rotation in SpriteKit?</strong></p>