* Remove payment gateways we can't really maintain
I've moved these to their own separate repos so others can easily contribute to them if needed, however since we can't (and don't plan to) maintain these, it's best to remove them from the main repo and no longer ship them with every installation.
The only known-working one is TwoCheckout which I'll get added to the extension directory
* Fix the tests
* Replace usage of array_get
* Fixes
* And a few more
* Remove remaining references
* Update Service.php
* Few more fixes
* Fix.. I think?
* Fix Client / Invoice updates
* Fix stats
* Fix issues noticed during code review
* More fixes
* And some more fixes :)
* Move RedBeanPHP to composer
* Remove missed references to rb.php
* This *should* fix the tests
* Update DummyBean.php
* Remove payment adapter tests
They.. honestly didn't test much and are proving to cause issues when moving rb.php to composer
Belle Aerni