Auto-reducing curviness for close points.

[StartSWest]

Hi, I think that Bezier curve calculations should automatically reduce its curviness factor per distance between points. Let’s say to set the curviness to 150 if the distance between the two points is far enough that’s fine but while points gets close the curviness for the active curve should be reduce automatically to see this nice less curved short line between the two points.

[sporritt]

it sounds like a reasonable idea. in fact i think there's a PR from years ago that, for some reason, was never merged in. i dont know if it would be easily merged in to the current state of the code.