Allow High way Enable even if Disabled in general parameters

[rumbrummer]

There is already a discussion about that in

Feature request: Route segment settings

In the new (awsome) version of Kurviger segments of the route can now be customized with respect to their “curviness” (1 on the attached figure), but I would really like to be able to also en- or disable motorways, ferries etc. on a per segment basis. (2 on the attached figure) I am currently planning a rather long trip from Denmark to Gibraltar('ish), and for some segments of the route I would like to include motorways, while for other segments I would do anything to avoid them. This would be…