[9.x] Add simplePaginateRaw query

[mmachatschek]

The method complements the existing simplePaginate() method with the option to receive the "raw" data of the search engine.

There already exists a paginate() and paginateRaw() method.

[taylorotwell]

paginateRaw does not exist in Laravel.

[mmachatschek]

@taylorotwell there already exists a paginateRaw() method on the Builder::class of scout

scout/src/Builder.php

Line 362 in 214ef71

public function paginateRaw($perPage = null, $pageName = 'page', $page = null)

which was implemented in this PR #220

[driesvints]

@taylorotwell sorry, gonna reopen this so you can review again ^