Do client-side blocking for group operations with an operation id in response

[ncabatoff]

🛠️ Description

🏗️ Acceptance tests

I did not run the acceptance tests, but it seems that CI does now. Maybe this PR template is out of date?

I tested locally by first creating an hcp group, then changing its display_name so that an update was made, then defining group members, as in:

resource "hcp_group" "example" {
  display_name = "group17"
}

data "hcp_user_principal" "me" {
  email = "nick.cabatoff@gmail.com"
}

resource "hcp_group_members" "test" {
  group = hcp_group.example.resource_name
  members = [data.hcp_user_principal.me.user_id]
}

Finally I deleted the group. For each test I looked at DD to confirm that after the response from cloud-iam, Wait requests were issued to cloud-operation for the returned operationID.

• Are there any feature flags that are required to use this functionality?
• Have you added an acceptance test for the functionality being added?
• Have you run the acceptance tests on this branch?

Output from acceptance testing:

$ make testacc TESTARGS='-run=TestAccXXX'

...

[alexmunda]

nit: save an else by defaulting to "-" and setting when non ""