656bbd4c7c
Instead of requiring `GreasePencilStrokeParams` to have a `DrawingPlacement`, pass it to the `foreach_editable_drawing` callback. This makes it possible to have a variant of `foreach_editable_drawing` that doesn't use a `DrawingPlacement`. The `Smooth`, `Thickness`, and `Strength` sculpt brushes don't need this for example. Also in preparation of using `GreasePencilStrokeOperationCommon` in more places like vertex painting and weight painting. Pull Request: https://projects.blender.org/blender/blender/pulls/125903