Adds an Integration Test to ensure that the data root group is added as a member of newly created groups

Adds an integration tests that ensures that newly created data groups are not added to the root group and that the root group is added to the created data group.

Currently requires the disable-data-root-group-hierarchy feature flag to be disabled. Might need to be changed if this fails for other CSPs.

This should ensure that this issue is fixed for all Cloud Service Providers.

The AWS test will fail until the AWS team merges back to master.