title: Add a Custom Field to WooCommerce Order Items
body: <p>Currently, WooCommerce Order Items within an order, have the following columns:</p>
  
  <ul>
  <li>Item</li>
  <li>Tax Class</li>
  <li>Qty</li>
  <li>Totals</li>
  <li>Tax</li>
  </ul>
  
  <p><a href="http://cl.ly/image/1R2j1t3c1a2U" rel="noreferrer">See screenshot</a></p>
  
  <p>What I'm aiming to do is add an extra column (or meta) which has a dropdown field for Product Status.</p>
  
  <p>Does anyone have any ideas on how I might accomplish this?</p>