If no user_password is provided, the behavior remains the same, it uses
the default changeme password and requires to be changed for using sudo

If a user_password is provided, this hashed password will be used
instead of the default and doesn't require changing on first usage of
sudo

This modularity means that each role can be installed in a playbook by
itself as long as the other roles exist around it.
This also straps the ensure dependency packages exist in any of the
roles tasks, they should be moved to their own roles and configured
properly if needed.