Problem with rolling your own request matcher

[xocasdashdash]

Hi! I had to roll my own request matcher service in my firewall and I had to implement an RequestMatcherInterface (https://github.com/symfony/HttpFoundation/blob/master/RequestMatcherInterface.php).

Now because of this file: https://github.com/schmittjoh/JMSDebuggingBundle/blob/430daab75b88d78ee9e06ed2ae7811ea3da947af/Security/TraceableMap.php (line 29) is expecting the request matcher to be one of this type https://github.com/schmittjoh/JMSDebuggingBundle/blob/430daab75b88d78ee9e06ed2ae7811ea3da947af/HttpFoundation/TraceableRequestMatcher.php

I had to implement two methods that are not present on the RequestMatcherInterface.php.

Are you open to a PR that makes this method optional so it plays well with user defined Request Matcher?