* Remove unnecessary save() on invoice
* Update copyright
* Working on Credit Repository
* Implement credits as a paymentable entity
* Add credit_id to transformer
* fix rules for update payment
* Fix random deleted_at keys in transformers
* Fix for password_protect check
* Fixes for OpenAPI Documentation + fix support for docs for PHP 7.4
* User update tests
* Add total_taxes to invoice table, implement addition create-test-data fields for item and invoice level taxes