Add ability to list all cases contributed by group members

Description

Right now the only way to see all cases contributed by group members is to assign group as collaborator to every singe case or to assign a study (as in C4R case). For large groups like UDN and C4R this is not a sustainable solution.
Once there is a super group involvement (e.g. UDNI) all cases need to have group as collaborator + super group as collaborator. The process is too cumbersome. Our users should not be bothered with it.

Environment

None

Assignee

Unassigned

Reporter

Sasha Andjic

Labels

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External issue ID

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Fix versions

Priority

Major