title: Input type="number" is not working with currency pipe
body: <p>Currency pipe is not working for <code>input</code> type number and I did not get any value in web page. I found several blog and understand that currency pipe works with input type text but my requirement strict with number. Is there way to use <code>input</code> type number with currency pipe.</p>
  
  <pre><code>&lt;input type="number" name="totalCompensation"  [(ngModel)]="model.totalCompensation | currency:'USD':true" /&gt;
  </code></pre>