Throw an error if `scale_cost!=1.0` in `geometry.Geodesic`

[MUCDK]

Is your feature request related to a problem? Please describe. In Geodesic, the scale_cost argument has no effect.

Describe the solution you'd like To prevent misunderstandings, I suggest to throw an error if scale_cost!=1.0 in geometry.Geodesic.from_graph.

Describe alternatives you've considered None

Additional context None