title: Disable the closing of ngx-smart-modal on outside click
body: <p>I am using the ngx-smart-modal and it is working fine but the problem is that I want to disable it closing when a click is initiate outside the modal or in the body.</p>
  
  <pre><code>&lt;button class="btn btn-primary" (click)="ngxSmartModalService.getModal('classicModalregister').open()"&gt;Register&lt;/button&gt;
  &lt;ngx-smart-modal #popupRegister [identifier]="'classicModalregister'" customClass="medium-modal"&gt;
  &lt;h1&gt;Register Here !&lt;/h1&gt;
  &lt;p&gt;dfdfd&lt;/p&gt;
  &lt;/ngx-smart-modal&gt;
  </code></pre>