8b31e8663b
In GPv2, strokes could be edited using bézier curve handles. This was implemented by creating an `editcurve` for a stroke that would store the handles and other attributes. In GPv3, we can directly make use of the `CURVE_TYPE_BEZIER` and store the curve as a bézier curve. Note: This PR only handles conversion. Not rendering or anything else. Pull Request: https://projects.blender.org/blender/blender/pulls/118386