revert bd3861c580

revert Merge pull request 'Remove clanModules/*' (#4202) from remove-modules into main

Reviewed-on: https://git.clan.lol/clan/clan-core/pulls/4202

See: https://git.clan.lol/clan/clan-core/issues/4365

Not all modules are migrated.
If they are not migrated, we need to write migration docs and please display the link to the migration docs

clanModules/user-password/README.md

@@ -0,0 +1,24 @@
+---
+description = "Automatically generates and configures a password for the specified user account."
+categories = ["System"]
+features = ["inventory", "deprecated"]
+---
+
+If setting the option prompt to true, the user will be prompted to type in their desired password.
+
+!!! Note
+    This module will set `mutableUsers` to `false`, meaning you can not manage user passwords through `passwd` anymore.
+
+
+After the system was installed/deployed the following command can be used to display the user-password:
+
+```bash
+clan vars get [machine_name] root-password/root-password
+```
+
+See also: [Vars](../../guides/vars-backend.md)
+
+To regenerate the password run:
+```
+clan vars generate --regenerate [machine_name] --generator user-password
+```