Revert "[TwigBundle] removed the extends tags from the table layout (it's not needed anymore)"

This reverts commit 66a01855f71979922a516e1fe4b68bdfcbc1785e.

src/Symfony/Bundle/TwigBundle/Resources/views/Form/table_layout.html.twig

@@ -1,3 +1,5 @@
+{% extends "TwigBundle:Form:div_layout.html.twig" %}
+
 {% block field_row %}
 {% spaceless %}
     <tr>