This commit introduces the `radial_symmetry` property on the `Mesh`
datablock and simultaneously removes the `radial_symm` property in
Sculpt, Vertex Paint, and Weight Paint.
This allows users to have these symmetry values defined on a per-object
basis instead of needing to reconfigure it for each mesh.
Current values stored on the `ToolSettings` on a per-scene basis are not
copied to each mesh in a scene. This is done to avoid introducing
potentially inaccurate data to a large number of meshes at the cost of
some minor backwards incompatibility.
Part of #108107
Pull Request: https://projects.blender.org/blender/blender/pulls/141108
d73b8dd4f3