Support Hierarchical Projects

[jobrs]

When the target project/domain has child-projects, the API calls cascade to the child-projects, so that the audit-viewer of the main project does not have to traverse all the child-projects.

When called against the main project, the API act like the child-projects had been merged with the main project. That means that the /events call returns all the events of child-projects. Likewise the /attributes API returns existing unique values in not only the main but also the child projects.

[notque]

This may become possible with the event enhancement cache being poc'd now. Child projects needs to be an included field

[notque]

The enrichment project is enabled, and a success. We have not added child projects at this time. Will look into the viability with additional fields to manage child projects via enrichment. From there, we can cascade the calls to combine child project information. Many more events as well are included within project scopes now as we are enriching events without this data after the fact.

[notque]

Issue #57 will also need to be addressed as we have exceeded the limit on most projects already, without including child projects.