MoveP blend speed

Summary

Option to set the speed for the turn while using blend during a move P.

What is it?

While creating a waypoint with a blend radius, add a “speed during blend” option.

Why is it needed?

Fine tuning while dispensing glue for example is often needed, and corners can be hard to get perfect as the glue might shift. Having a way to adjust the speed during the blend without having extra waypoints will make the code shorter and easier to follow.