[ticket/11832] Create phpbb_symfony_request to handle initiating symfony_request

Now symfony_request is also a service (removed the function
phpbb_create_symfony_request).

Inject symfony request into filesystem

Cleanup for the tests

PHPBB3-11832

phpBB/config/services.yml

@@ -170,6 +170,7 @@ services:
     filesystem:
         class: phpbb_filesystem
         arguments:
+            - @symfony_request
             - %core.root_path%
 
     groupposition.legend:
@@ -254,6 +255,11 @@ services:
     request:
         class: phpbb_request
 
+    symfony_request:
+        class: phpbb_symfony_request
+        arguments:
+            - @request
+
     template:
         class: phpbb_template_twig
         arguments: