[ENHANCEMENT] Indentification of anonymous access

[nimdanor]

Is your feature request related to a problem? Please describe.
the problem is that if more than on user uses the anonymous access the session is shared and it leads to a lot of differents bugs.

Describe the solution you'd like
A cookie system that identifies the navigator and creates a session linked to the cookie.
So each user in anonymous would be associated to a different session.

Could be extended to the use case of testing candidates.

Describe alternatives you've considered
The creation of a user whould be heavy and not a DEMO approche.