Reference Metadata should only install built-in reports

1. Description

Reference Metadata's activator scans for all beans that implement ReportManager which is intrusive (see here):

ReportManagerUtil.setupAllReports(ReportManager.class);

This may end up installing unwanted reports whose report manager happen to be available as a bean.

2. Suggested Solution

Let us have all Reference Application built-in reports's report managers to extend their own class -say- ReferenceApplicationReportManager and filter them on that basis:

ReportManagerUtil.setupAllReports(ReferenceApplicationReportManager.class);