Allow multiple optional parameters to be passed down to applyScope()

[LordSimal]

To adjust ORM queries one has to use the ->applyScope() method of the AuthorizationComponent.

But in certain scenarios it would be helpfull to pass down arguments to the ->applyScope() method because the query needs to be adjusted according to

• the current logged in user AND
• the state of a specific service object or maybe request parameters.

The proposed solution would look like that:

public function index(MyService $myService)
{
    $this->Authorization->skipAuthorization();
    $query = $this->Products->find();
    $query = $this->Authorization->applyScope($query, 'index', $myService);
    $products = $this->paginate($query);

    $this->set(compact('products'));
}

And in the ProductsTablePolicy.php it would look like this:

class ProductsTablePolicy
{
    public function scopeIndex(IdentityInterface $user, Query $query, $myService)
    {
        return $query->where(['Products.price >' => 0]);
    }
}

This would be of course a BC break because we would have to adjust at least the IdentityInterface::applyScope as well as the AuthorizationServiceInterface::applyScope

What do you think?