As the default uclient-fetch doesn't support authentication header
and the ddns provider myonlineportal.net support also username and
passwort as url parameter this can be changed.

Signed-off-by: Gerald Hansen <gerald.hansen@cloud.ionos.com>

Since we can also install custom ddns services, the name for the default
services is not optimally chosen. To emphasize this the folder with the
standard services for the package feed will be renamed to default.

Signed-off-by: Florian Eckert <fe@dev.tdt.de>

Signed-off-by: Florian Eckert <fe@dev.tdt.de>