Facilitate usage of filters

[mcsky]

The filters are used to filtering a collection of items.

It is common to want a filter applying only for a specific route.

Unfortunately, the method (supports(string $class)) doesn't have the request. To implement this logic you have to inject the requestStack and do the classic checks against null value.

It could be helpful and have sense to inject the current request to the support method (and only support)

This is BC IMHO, but what do you think @Nek- ?

[Nek-]

I'm not sure it's a good idea to match directly on the request stack in case you want a route-related filter.

Here is an idea of implementation that keep BC. What do you think about adding a RouteAwareFilterInterface with a trait like this:

trait RouteAwareTrait
{
    private $route;
    public function setRoute(string $route) { $this->route = $route; }
}

But another idea (potentially better) is to add a new parameter extra_filters to the route we define. WDYT?