Create Initial ApiClient Class

To @jayhuskins point here: https://www.drupal.org/project/api_client/issues/3365506#comment-15098435 →

how can we implement this with support for localization right away?

Would that part be handled by the consumer of this library by passing in the locale to each request?

Should we require a default language like DrupalState did?

Or is the localization better handled in the JsonAPIClient instead of this base class?

This is mostly addressed by our initial project scaffolding, but I think likely needs more complete tests and possibly improved documentation.

Opened a draft MR with additional test coverage. Still need to take a quick look to see if anything else needs to be documented.

Merged. Marking as fixed. Not sure what the deal is with the merge train failing here. Will have to keep an eye on that.

Automatically closed - issue fixed for 2 weeks with no activity.