Add has_any_roles expression

| Q | A |
| ---------------- |:-------------:|
| Bug fix?         | no             |
| New feature? | yes           |
| BC breaks?    | no            |
| Tests pass?   | yes           |
| License          | MIT          |
| Doc PR 	        | n/a           |

This PR is about to check if the current user has one of the specified roles, example:

```php 
use Sensio\Bundle\FrameworkExtraBundle\Configuration\Security;

class PostController extends Controller
{
    /**
     * @Security("has_any_roles(['ROLE_FOO', 'ROLE_BAR'])")
     */
    public function indexAction()
    {
        // ...
    }
}
```