As a user, I can filter requirements in the Traceability Report based on their coverage status

As a user, I can filter requirements in the Traceability Report based on their coverage status.

 The filter is applied in the backend, by adding the filter to the other filters already supported in this report, thus altering the request. 

e.g. if in a page of 20 requirements, we have

If we choose one of the quick filters, we will make a new request, getting 20 requirements (if present) with the specified status.

Note: similar to what we have done for Xray Cloud, we must provide quick filters to select the statuses to filter out.