Enable user to download folder content in one go

[arni-magnusson]

Summary

Download a full analysis (scripts, data, model and results) to the local drive as a zip folder

Tasks required

• [x] Zip option in controller
• [x] develop token authentication in backend

Links to other issues?

[colinpmillar]

Token auth can be done like this: https://logcorner.com/token-based-authentication-using-asp-net-web-api-core/

[colinpmillar]

Complete!