title: Hide specific TabItem in TabControl if not an admin
body: <p>I am working with a TabControl in XAML,</p>
  
  <p>however I only want certain TabItems to be available depending on the user.</p>
  
  <p><code>Admins = 1</code> therefore should have full access to the TabControl,</p>
  
  <p>Non <code>admins = 0</code> therefore should only have specific tabs available.</p>
  
  <p>How can I hide specific tabs depending on the user?</p>
  
  <p>Thanks.</p>