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/FormFactoryBuilderInterface.php

@@ -0,0 +1,96 @@
+<?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;
+
+/**
+ * A builder for FormFactoryInterface objects.
+ *
+ * @author Bernhard Schussek <bschussek@gmail.com>
+ */
+interface FormFactoryBuilderInterface
+{
+    /**
+     * Sets the factory for creating ResolvedFormTypeInterface instances.
+     *
+     * @return $this
+     */
+    public function setResolvedTypeFactory(ResolvedFormTypeFactoryInterface $resolvedTypeFactory): static;
+
+    /**
+     * Adds an extension to be loaded by the factory.
+     *
+     * @return $this
+     */
+    public function addExtension(FormExtensionInterface $extension): static;
+
+    /**
+     * Adds a list of extensions to be loaded by the factory.
+     *
+     * @param FormExtensionInterface[] $extensions The extensions
+     *
+     * @return $this
+     */
+    public function addExtensions(array $extensions): static;
+
+    /**
+     * Adds a form type to the factory.
+     *
+     * @return $this
+     */
+    public function addType(FormTypeInterface $type): static;
+
+    /**
+     * Adds a list of form types to the factory.
+     *
+     * @param FormTypeInterface[] $types The form types
+     *
+     * @return $this
+     */
+    public function addTypes(array $types): static;
+
+    /**
+     * Adds a form type extension to the factory.
+     *
+     * @return $this
+     */
+    public function addTypeExtension(FormTypeExtensionInterface $typeExtension): static;
+
+    /**
+     * Adds a list of form type extensions to the factory.
+     *
+     * @param FormTypeExtensionInterface[] $typeExtensions The form type extensions
+     *
+     * @return $this
+     */
+    public function addTypeExtensions(array $typeExtensions): static;
+
+    /**
+     * Adds a type guesser to the factory.
+     *
+     * @return $this
+     */
+    public function addTypeGuesser(FormTypeGuesserInterface $typeGuesser): static;
+
+    /**
+     * Adds a list of type guessers to the factory.
+     *
+     * @param FormTypeGuesserInterface[] $typeGuessers The type guessers
+     *
+     * @return $this
+     */
+    public function addTypeGuessers(array $typeGuessers): static;
+
+    /**
+     * Builds and returns the factory.
+     */
+    public function getFormFactory(): FormFactoryInterface;
+}