* fix: handle UserLoginMustBeDomain changes correctly
* fix: remove verified domains (and not only primary) as suffix
* fix: ensure testability by changing map to slice
* cleanup
* reduce complexity of DomainPolicyUsernamesWriteModel.Reduce()
* add test for removed org policy
* fix: rename iam command side to instance
* fix: rename iam command side to instance
* fix: rename iam command side to instance
* fix: rename iam command side to instance
* fix: rename orgiampolicy to domain policy
* fix: merge conflicts
* fix: protos
* fix: md files
* implement deprecated org iam policy again
Co-authored-by: Livio Amstutz <livio.a@gmail.com>