title: Easy Admin: How to customize a field template in the form view?
body: <p>I need to customize a form view field (edit form field) in EasyAdmin bundle. Here's how it's done in the list view:
   <code>- { property: 'images', template: 'custom_template.html.twig'}</code></p>
  
  <p>How to implement the same thing in the form view (edit mode)? Custom templates don't work for the form view (edit view). So I made a custom field type</p>
  
  <p><code>- { property: 'images', type: 'App\Form\Type\MyImagesType'}</code></p>
  
  <p>but don't know how to implement a custom template to it.</p>
  
  <pre><code>class MyImagesType extends CollectionType
  {
  public function buildForm(FormBuilderInterface $builder, array $options)
  {
      $form-&gt;add($key, FileType::class, ['multiple'=&gt;true, 'required'=&gt;false]);
   }
  }
  </code></pre>
  
  <p>I want to integrate dopzone.js in my form by inserting the script: </p>
  
  <pre><code>&lt;script src="./public/dropzone.js"&gt;&lt;/script&gt;
  &lt;form action="{{ oneup_uploader_endpoint('gallery') }}" class="dropzone" style="width:200px; height:200px; border:4px dashed black"&gt;
  &lt;/form&gt;
  </code></pre>