get results API Client implementieren

https://pages.cms.hu-berlin.de/iqb/testcenter/dist/api/index.html#tag/admin-workspace/paths/1workspace1{ws_id}~1results/get

added S: In progress label

changed the description

added S: In review label and removed S: In progress label

assigned to @xe78kux

mentioned in merge request !18 (merged)

added S: In progress label and removed S: In review label

mentioned in commit 28343d66

closed with merge request !18 (merged)