Christoph Lendenfeld a43359eb88 Anim: Store pose bone visibility flag on pose bone
This PR adds a flag to the pose bone that determines its visibility.
Doing so allows to hide a pose bone and
* don't affect other instances of the same armature
* save the visibility even if the rig is linked

The visibility of the bone in object mode is now also determined by the
pose bone whereas before it was the `Bone`.

**This breaks backwards compatibility** on the Python API since the visibility property,
on the `Bone` behaves differently now as it hides the edit bone instead of the pose bone.

In order to remove all active uses of `BONE_HIDDEN_P` the changes in `armature_skinning.cc` are required.

Part of #138482

Pull Request: https://projects.blender.org/blender/blender/pulls/139167
2025-08-07 15:54:58 +02:00
2023-12-08 13:28:13 +11:00
2025-07-10 12:48:33 +10:00

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