Collision Path2D

Create smooth arbitrary collision shapes using CollsiionPath2D tool node.

Instructions:

1. Install CollisionPath node under a CollisionPolygon2D
2. Add a Curve to the node
3. Options (node exports):
* draw_points (bool): Whether points on polygon corners are drawn while editing the curve.
* enabled (bool) Whether the curve is converted to polygon or not
* max_stages (float) and tolerance_degrees (degrees): parameters of Curve.tesselate