N°8771 - Add Symfony form component to iTop core (#760)

- Add Symfony Form Component
- Add Symfony CSRF security component
- Add iTop default form template
- Add Twig debug extension to Twig Environment
- Add iTop abstract controller facility to get form builder
- Add Twig filter to make trans an alias of dict_s filter

lib/symfony/form/ChoiceList/View/ChoiceView.php

@@ -0,0 +1,54 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Form\ChoiceList\View;
+
+use Symfony\Contracts\Translation\TranslatableInterface;
+
+/**
+ * Represents a choice in templates.
+ *
+ * @author Bernhard Schussek <bschussek@gmail.com>
+ */
+class ChoiceView
+{
+    public $label;
+    public $value;
+    public $data;
+
+    /**
+     * Additional attributes for the HTML tag.
+     */
+    public $attr;
+
+    /**
+     * Additional parameters used to translate the label.
+     */
+    public $labelTranslationParameters;
+
+    /**
+     * Creates a new choice view.
+     *
+     * @param mixed                              $data                       The original choice
+     * @param string                             $value                      The view representation of the choice
+     * @param string|TranslatableInterface|false $label                      The label displayed to humans; pass false to discard the label
+     * @param array                              $attr                       Additional attributes for the HTML tag
+     * @param array                              $labelTranslationParameters Additional parameters used to translate the label
+     */
+    public function __construct(mixed $data, string $value, string|TranslatableInterface|false $label, array $attr = [], array $labelTranslationParameters = [])
+    {
+        $this->data = $data;
+        $this->value = $value;
+        $this->label = $label;
+        $this->attr = $attr;
+        $this->labelTranslationParameters = $labelTranslationParameters;
+    }
+}