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/http-kernel/Tests/Fixtures/ClearableService.php

@@ -0,0 +1,13 @@
+<?php
+
+namespace Symfony\Component\HttpKernel\Tests\Fixtures;
+
+class ClearableService
+{
+    public static $counter = 0;
+
+    public function clear()
+    {
+        ++self::$counter;
+    }
+}