migration symfony 5 4 (#300)

* symfony 5.4 (diff dev)

* symfony 5.4 (working)

* symfony 5.4 (update autoload)

* symfony 5.4 (remove swiftmailer mailer implementation)

* symfony 5.4 (php doc and split Global accessor class)


### Impacted packages:

composer require php:">=7.2.5 <8.0.0" symfony/console:5.4.* symfony/dotenv:5.4.* symfony/framework-bundle:5.4.* symfony/twig-bundle:5.4.* symfony/yaml:5.4.* --update-with-dependencies

composer require symfony/stopwatch:5.4.* symfony/web-profiler-bundle:5.4.* --dev --update-with-dependencies

lib/symfony/framework-bundle/Resources/config/debug.php

@@ -0,0 +1,50 @@
+<?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\DependencyInjection\Loader\Configurator;
+
+use Symfony\Component\HttpKernel\Controller\ArgumentResolver\NotTaggedControllerValueResolver;
+use Symfony\Component\HttpKernel\Controller\TraceableArgumentResolver;
+use Symfony\Component\HttpKernel\Controller\TraceableControllerResolver;
+use Symfony\Component\HttpKernel\Debug\TraceableEventDispatcher;
+
+return static function (ContainerConfigurator $container) {
+    $container->services()
+        ->set('debug.event_dispatcher', TraceableEventDispatcher::class)
+            ->decorate('event_dispatcher')
+            ->args([
+                service('debug.event_dispatcher.inner'),
+                service('debug.stopwatch'),
+                service('logger')->nullOnInvalid(),
+                service('request_stack')->nullOnInvalid(),
+            ])
+            ->tag('monolog.logger', ['channel' => 'event'])
+            ->tag('kernel.reset', ['method' => 'reset'])
+
+        ->set('debug.controller_resolver', TraceableControllerResolver::class)
+            ->decorate('controller_resolver')
+            ->args([
+                service('debug.controller_resolver.inner'),
+                service('debug.stopwatch'),
+            ])
+
+        ->set('debug.argument_resolver', TraceableArgumentResolver::class)
+            ->decorate('argument_resolver')
+            ->args([
+                service('debug.argument_resolver.inner'),
+                service('debug.stopwatch'),
+            ])
+
+        ->set('argument_resolver.not_tagged_controller', NotTaggedControllerValueResolver::class)
+            ->args([abstract_arg('Controller argument, set in FrameworkExtension')])
+            ->tag('controller.argument_value_resolver', ['priority' => -200])
+    ;
+};