N°2435.1 Portal: Split portal composer.json in 2

- Autoloader for portal files in the itop-portal-base module
- Dependencies moved to root composer.json
- Add autoloader for /core and /application content

lib/symfony/framework-bundle/Resources/config/request.xml

@@ -0,0 +1,15 @@
+<?xml version="1.0" ?>
+
+<container xmlns="http://symfony.com/schema/dic/services"
+    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+    xsi:schemaLocation="http://symfony.com/schema/dic/services https://symfony.com/schema/dic/services/services-1.0.xsd">
+
+    <services>
+        <defaults public="false" />
+
+        <service id="request.add_request_formats_listener" class="Symfony\Component\HttpKernel\EventListener\AddRequestFormatsListener">
+            <tag name="kernel.event_subscriber" />
+            <argument/>
+        </service>
+    </services>
+</container>