title: Angular Nebular nbInput - Add mask into input fields
body: <p>I need to add mask into input text fields (phone, date, email, etc).<p>
  I'm using Angular and <a href="https://akveo.github.io/nebular/" rel="nofollow noreferrer">Nebular 5.0.0</a>, and according to the <a href="https://akveo.github.io/nebular/docs/components/input/api#nbinputdirective" rel="nofollow noreferrer">official documentation</a>, there is no mask attribute available.<p>
  I had tried to add <a href="https://www.npmjs.com/package/ngx-mask" rel="nofollow noreferrer">ngx-mask-version(8.1.7)</a> as follow, but doesn't worked.</p>
  
  <pre class="lang-js prettyprint-override"><code>&lt;input type="text" nbInput mask="(00)00000-0000" class="form-control" [(ngModel)]="model.phone" name="phone"&gt;
  </code></pre>
  
  <p>Is possible to integrate ngx-mask and Nebular nbInput components? If is not possible, how can I add mask into my input fields?</p>