App: Waypoint types

[devemux86]

@SchlesiM

I think the different handling of waypoints and shaping point in case of rerouting would be one of the most essential benefits of those both types.

Perhaps, though in a round trip with start / end and 1-2 shaping points,
if not use shaping points, then rerouting leads straight back to the start.

So seems like having an extra setting: use shaping points in rerouting?