Show OpenID users associated with Team

### Current Behavior

> Initially started as discussion #2440, which I cannot delete

Possibly I'm missing something, or I'm barking up the wrong three here:

In our Dependency Track instance, we use OpenID for authentication, and we associate the OpenID user with teams.
However it would be nice to see what OpenID users are associate with what teams. Currently this appears not to be present:


Currently, we do not sync OpenID groups, they would be visible as Team mappings. Direct assignments of users to a Team are not visible.
Is this by design, or would this be a legitimate feature request?

> I think this is not the same issue as #1488

### Proposed Behavior

Show a section of (manageable) OpenID users in the team details.

### Checklist

- [X] I have read and understand the [contributing guidelines](https://github.com/DependencyTrack/dependency-track/blob/master/CONTRIBUTING.md#filing-issues)
- [X] I have checked the [existing issues](https://github.com/DependencyTrack/dependency-track/issues) for whether this enhancement was already requested