Update RBAC display name for unresolved identities and groups

[joelhulen]

Update RBAC display name for unresolved identities and groups

The issue or feature being addressed

When using virtual security groups or referencing users and roles that no longer exist, the identity information returned by Microsoft Graph is null. This causes an error when displaying the RBAC list within the Management Portal, plus one cannot tell which identity is listed within the RBAC list.

Details on the issue fix or feature implementation

This PR ensures that unmatched Entra ID objects are returned when calling GetObjectsByIds, setting the display name to the object ID.

Also updated the breaking changes document to document a change in RBAC permissions required on the auth Key Vault account.

Confirm the following

• I started this PR by branching from the head of the default branch
• I have targeted the PR to merge into the default branch
• This PR needs to be cherry-picked into at least one release branch
• I have included unit tests for the issue/feature
• I have included inline docs for my changes, where applicable
• I have successfully run a local build
• I have provided the required update scripts, where applicable
• I have updated relevant docs, where applicable

Note

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