Cascade close-out

Implement the option to close-out/announce requests and cascade the
status change to all resubmission children for the request.

For this there is a new view which allows the ReqMgr service
to construct the resubmission tree starting from a "original" request.

Fixes #4477
Merge pull request #4575 from dballesteros7/Cascade-Close-out

Cascade close-out