Feature request: When we want to draw a curve from a node of another curve, highlight the node

[raindropsfromsky]

Suppose we want to draw a Bezier curve from another existing curve, either from an end-point or another node in the middle. When I select the Draw Bezier tool and hover the pointer on the curve, none of the nodes on the old curve are highlighted,

Desired: We should be able to snap the starting point to any of the nodes of the older curve, and that should be visually indicated.

[Shriinivas]

You can enable the snap point indicator via add-on preferences: