Dancer::Plugin::Auth::Extensible::Unix - authenticate *nix system accounts
An authentication provider for Dancer::Plugin::Auth::Extensible which authenticates Linux/Unix system accounts.
Uses Unix::Passwd::File to read user details,
and Authen::Simple::PAM to perform authentication via PAM.
get_user_details call for this provider will return information from the
passwd file - expect
Unix group membership is used as a reasonable facsimile for roles - this seems sensible.