Allow to pass params to autoPagingIterator method

[driesvints]

This PR resolves #1400

By allowing to pass params to the underlying nextPage or previousPage methods we can expand data for the resources that are retrieved.

Example:

$stripe = new \Stripe\StripeClient('stripe-secret');

$invoice = $stripe->invoices->retrieve('in_xxx', [
    'expand' => ['lines.data.tax_amounts.tax_rate'],
]);

foreach ($invoice->lines->autoPagingIterator(['expand' => ['data.tax_amounts.tax_rate']) as $line) {
    foreach ($line->tax_amounts as $tax_amount) {
        $tax_rate = $tax_amount->tax_rate;
        echo $tax_rate->display_name . ' ' . $tax_rate->percentage . '%' . PHP_EOL;
    }
}

[remi-stripe]

Hey @driesvints Thanks a lot for the PR!

In theory the parameters should be kept during pagination and we've had similar issues in other libraries such as stripe/stripe-java#451

We'll have a look and see what is causing this and whether this fix is the right one!

[pakrym-stripe]

@driesvints I filed an internal request to see if we can fix the service to carry expand parameter over to next pages of lines.

If you don't mind I'll hold off merging this PR until we hear from the service team.

[richardm-stripe]

Hello @driesvints. We've changed the behavior on the API side so that merging this PR is no longer necessary (we closed out stripe/stripe-java#451, but missed this one.)

Please feel free to re-open if you notice any issues!

[driesvints]

Amazing, thanks!

[driesvints]

@richardm-stripe seems this isn't resolved yet: #1422