title: enqueue tinymce editor in customizer
body: <p>I'm having a hard time trying to make tiny mce editor work in the wordpress customizer.</p>
  
  <p>It looks like just calling "wp_editor" from my WP_Customize_Control extension doesn't trigger loading of TinyMCE scripts in the customizer.</p>
  
  <p>I've tried to load them manually like in this answer here: <a href="https://wordpress.stackexchange.com/questions/175307/tinymce-is-not-defined-when-not-using-wp-editor">https://wordpress.stackexchange.com/questions/175307/tinymce-is-not-defined-when-not-using-wp-editor</a></p>
  
  <p>and also tried with <code>wp_enqueue_script('tiny-mce')</code> but to no avail.</p>
  
  <p>Here's my render method, nothing fancy:</p>
  
  <pre><code>    public function render_content() {
  
          ?&gt;
          &lt;label&gt;
              &lt;span class="customize-control-title"&gt;&lt;?php echo esc_html( $this-&gt;label ); ?&gt;&lt;/span&gt;
              &lt;?php
              $settings = array(
                  'media_buttons' =&gt; false,
                  'quicktags' =&gt; false,
                  'teeny' =&gt; true
              );
  
              wp_editor($this-&gt;value(), $this-&gt;id, $settings );
              ?&gt;
          &lt;/label&gt;
          &lt;?php
      }
  </code></pre>
  
  <p>Any suggestions on how this should be done right?</p>