Add support for remine password hashes

[jamasi]

Redmine is using password hashes that are generated as this:

Hash = SHA1( salt + SHA1( password ) )

I'm not sure if user_sql can be configured to work with those, but if it can it would really help if the documentation would walk you through setting up this scenario.
It would be perfect if one could simply select "redmine" from the dropdown and all fields would be filled with the correct default values.

[mlojewski-me]

There's no such algorithm right now I will add it soon.

[mlojewski-me]

commit 8e80480

[nd-]

Hi @jamasi, do you have an example of a configuration that works with NC + user_sql and Redmine that you could share ?

Nextcloud 22.2.3 and Redmine 4.2.3.stable here.

Connection to the PostgreSQL DB from Redmine is ok, I setup users and group_users fields, but I don't know how to retrieve users email (there in a distinct email_adresses table).
And if I use login as UID in users table config, I have an query error in /settings/users in NC.
I'm a bit lost... :-/