As user has no means to recover existing FreeIPA install after
upgrading from SysV to systemd, introduce upgrade script.
The upgrade script does following:
- restores symlinks in FreeIPA's Dogtag installation
- converts FreeIPA directory server instances to systemd
- converts FreeIPA directory server configuration to be compatible
with systemd services
- converts FreeIPA KDC configuration to be compatible
with systemd services
- re-enables FreeIPA
Script does nothing if FreeIPA is already active systemd service
