Adding BackdropCommerceEntityController via hook_autoload_info()

[aheathgr]

Fixes #40

This fixes an error we were getting when we enabled commerce_customer, Class "BackdropCommerceEntityController" not found in require_once() (line 12 of /var/www/backdrop.local/modules/commerce/modules/customer/includes/commerce_customer_profile.controller.inc).

We just needed to make sure we were including that class in hook_autoload_info() in the commerce_customer module.

[argiepiano]

This was merged despite the multiple test failures?

[elisseck]

@argiepiano couple of things going on here:

1. Github actions is still spitting out wildly different results than my local env (php8.2, ubuntu 24.04, backdrop 1.31.0) so i'm not relying on that GHA report at all yet.
2. Using my local as a baseline, the latest changes are running more tests than before and the failures are on newly running ones... so I actually think we've resolved some previous test exceptions and uncovered a new issue that we just couldn't see in the test runs before.

[argiepiano]

@elisseck, regarding your comment about local tests passing, and the ones on GHA not: have you tried running your local tests with the Drupal compatibility layer off? Some of the failures may be related to deprecated Drupal functions, as GHA may be running the tests with the D layer off. Just spitballing.