Allow to easily use GitHub Pagination.

Nobody has claimed this yet.

### Is your feature request related to a problem? Please describe the problem.

Trying to use pagination with GitHub API as described here:
https://docs.github.com/en/rest/using-the-rest-api/using-pagination-in-the-rest-api

I have only 2 ways:
- ignore the headers, just request pages once at the time until I get an error or an incomplete page
- implement a `RequestHandler` to extract headers from the responses, but it's going to be challenging to use this mechanism in a concurrent system

### Client library/SDK language

None

### Describe the solution you'd like

It would be great to have a generic mechanism(maybe a callback?) to manually extract information from the raw Response.

### Additional context

Do you already have a design in mind to solve this use-case?

I can implement something custom in my `RequestAdapter` but it would be nicer if we rely on some common interfaces.

cc. @maxandersen

Start with the GitHub pagination documentation and the RequestHandler, RequestAdapter, and raw Response concepts named in the issue. Determine how a common response-information interface could work with concurrent clients, then verify that it exposes pagination headers without requiring a custom handler.

Written by the indexing model from the issue text.