title: Position text within an NSTextField
body: <p>Cocoa noob here. I'm working with an <code>NSTextField</code>, and am using <code>CALayer</code> to style the border of it.</p>
  
  <p>It looks like this:</p>
  
  <p><img src="https://i.stack.imgur.com/4em3l.png" alt="Screenshot"></p>
  
  <p>My question is: how can I position where the input text actually starts? I'd like to be able to push it over from the left and the top a bit.</p>
  
  <p>Thank you!</p>