Added methods to set custom request and response objects

[enzolutions]

The idea is enable to use Drupal 8 request and response, because the change a little bit from symfony request and responses.

[yosymfony]

but... Why do you need to do that? Drupal 8 is HttpKernelInterface friendly ping @h4cc

[enzolutions]

Not really, how request and response is created in a differente way in Drupal 8

[h4cc]

I cant see the cause for a change like this be needed. @enzolutions Please elborate or give examples.

Drupal 8 is using the stock symfony http-kernel and http-foundation way AFAIK: https://github.com/drupal/drupal/blob/8.0.x/index.php#L18

Only idea i have is to use a factory or middleware pattern, that will enable using callbacks to create Symfony Request/Response instances.

[yosymfony]

@h4cc I would understand a middleware pattern as factory to create Request instances... but does it needed for a response instances?