title: Display NLog trace in RichTextBox
body: <p>I whant to display <code>NLog</code> trace into <code>RichTextBox</code> at the same time when app executes</p>
  
  <pre><code>logger.Trace("This is a Trace message");
  logger.Debug("This is a Debug message");
  logger.Info("This is an Info message");
  logger.Warn("This is a Warn message");
  logger.Error("This is an Error message");
  logger.Fatal("This is a Fatal error message");
  </code></pre>
  
  <p>Has <code>NLog</code> any global event so it is possible to use it and populate <code>RichTextBox</code>?</p>
  
  <p>Thank you!</p>