Check possibility for hdm to run locally without authentication

[tuxmea]

We are considering the idea to let HDM run in a container without authentication for local (dev workstation) usage.

General question:

is it possible to easily disable authentication?

[rwaffen]

• should be a flag in hdm config file
• hide elements which show user / logged in as
• or add demo/dummy user to automatically use in this mode
• in production mode dummy user should be deactivaed

[oneiros]

I quickly prototyped the idea of using a dummy user for this here: ff9b009

As you can see, the diff is quite small.

If you would like to pursue this further, I would maybe add a test or two and open a PR.

[tuxmea]

@oneiros We have at least two requests from Puppet community on Slack who asked for disabling authentication.
It would be nice to have a config switch to deactivate and maybe switch the user authentication (local vs LDAP).