[SecurityBundle] Added missing files for phpunit

| Q             | A
| ------------- | ---
| Bug fix?      | no
| New feature?  | no
| BC breaks?    | no
| Deprecations? | no
| Tests pass?   | yes and no (BC Break in RequestMatcher, symfony/http-foundation: 2.2.x)
| Fixed tickets | -
| License       | MIT
| Doc PR        | -