Update GroupsController.Get(int) to IActionResult
Update GroupsController.Get(int) to IActionResult

Change signature to Task<IActionResult> rather than Task<Group>
This allows HttpNotFound results etc

GabrieleCastellani/SCAMP,shekr/SCAMP,calebdre/SCAMP,zbrad/SCAMP,GabrieleCastellani/SCAMP,brentstineman/SCAMP,PIC123/SCAMP,zbrad/SCAMP,PIC123/SCAMP,calebdre/SCAMP,shekr/SCAMP,brentstineman/SCAMP,CodeFluent/SCAMP,CodeFluent/SCAMP,CodeFluent/SCAMP,brentstineman/SCAMP,CodeFluent/SCAMP,PIC123/SCAMP,GabrieleCastellani/SCAMP,zbrad/SCAMP,shekr/SCAMP,GabrieleCastellani/SCAMP,calebdre/SCAMP,brentstineman/SCAMP,zbrad/SCAMP,PIC123/SCAMP,calebdre/SCAMP,shekr/SCAMP