[BodyListener] introducing "disable_routes" (avoid listening on specific routes) proof of concept
[BodyListener] revert https://github.com/FriendsOfSymfony/FOSRestBundle/commit/0bb8cb4fb0e410421f69d8df1103adccd77a406b and now being able to use given route to skip listener
[BodyListener] revert tests from https://github.com/FriendsOfSymfony/FOSRestBundle/commit/0bb8cb4fb0e410421f69d8df1103adccd77a406b
[BodyListener] prettify code
[BodyListener] skip the bodylistener (not just arrayNormalizer) on disabled routes
[BodyListener] provide test to assert that the listener is not called if  a disabled route is provided but the request content remains the same.