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/polyfill-intl-icu/DateFormat/QuarterTransformer.php

@@ -0,0 +1,65 @@
+<?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\Polyfill\Intl\Icu\DateFormat;
+
+/**
+ * Parser and formatter for quarter format.
+ *
+ * @author Igor Wiedler <igor@wiedler.ch>
+ *
+ * @internal
+ */
+class QuarterTransformer extends Transformer
+{
+    public function format(\DateTime $dateTime, int $length): string
+    {
+        $month = (int) $dateTime->format('n');
+        $quarter = (int) floor(($month - 1) / 3) + 1;
+        switch ($length) {
+            case 1:
+            case 2:
+                return $this->padLeft($quarter, $length);
+            case 3:
+                return 'Q'.$quarter;
+            case 4:
+                $map = [1 => '1st quarter', 2 => '2nd quarter', 3 => '3rd quarter', 4 => '4th quarter'];
+
+                return $map[$quarter];
+            default:
+                if (\defined('INTL_ICU_VERSION') && version_compare(\INTL_ICU_VERSION, '70.1', '<')) {
+                    $map = [1 => '1st quarter', 2 => '2nd quarter', 3 => '3rd quarter', 4 => '4th quarter'];
+
+                    return $map[$quarter];
+                } else {
+                    return $quarter;
+                }
+        }
+    }
+
+    public function getReverseMatchingRegExp(int $length): string
+    {
+        switch ($length) {
+            case 1:
+            case 2:
+                return '\d{'.$length.'}';
+            case 3:
+                return 'Q\d';
+            default:
+                return '(?:1st|2nd|3rd|4th) quarter';
+        }
+    }
+
+    public function extractDateOptions(string $matched, int $length): array
+    {
+        return [];
+    }
+}