* Trigger a notification when a new SalesOrder is created
- Notify the "responsible" owners (excluding the creator)
- Add unit test for new notification
* Adds notification when a new PurchaseOrder is created
* Add notification when a new build order is created
- Includes unit tests
* Refactor order notification code
- Adds a "exclude users" option for sending notifications
* Fixes for notification refactoring
* make notification a helper
* reduce statements togehter
* make reuse easier
* Add docs
* Make context variables clearer
* fix assertation
* Fix set notation
Co-authored-by: Matthias <code@mjmair.com>