How to handle users in the future / we need an SSO

[kelson42]

Any software which needs to take track of the user activity or simply being a collaboration team will need to identify users.

For the moment this is not possible at all because we have no identity infrastructure.

This issue is created to discuss this topic and help the qualification.

Blocked by #54

[kelson42]

https://github.com/vigiloauth/ is a small and interesting IDP