This commit adds support for users to customize individual pressure mapping curves for size, strength, and position jitter on a per-brush basis to improve expression when using drawing tablets. This feature is already implemented in Grease Pencil, and this PR adds the same functionality to Texture/Image paint, Vertex/Weight paint, and Sculpt modes. The UI and functionality are the same as those in Grease Pencil. Co-authored-by: Sean Kim <SeanCTKim@protonmail.com> Pull Request: https://projects.blender.org/blender/blender/pulls/144428