Fix T92631: Fix negative thickness regression in complex solidify

This regression was introduced by D11832, but there was problems before
that as well. I seem to have missed it in review. See the differential
revision for a screenshot of the difference.

Differential Revision: https://developer.blender.org/D13216

Fix T91481: Grease Pencil Layer Double Transformations

Use the inverse of the grease pencil object. This patch fixes the issue for bones and objects.

Maniphest Tasks: T91481

Differential Revision: https://developer.blender.org/D12539

Fix T91481: Grease Pencil Layer Double Transformations

Use the inverse of the grease pencil object. This patch fixes the issue for bones and objects.

Maniphest Tasks: T91481

Differential Revision: https://developer.blender.org/D12539

Fix Constraints not updating on move in stack

Flag the changed object and its bones to update after moving a
constraint in the stack up or down. The two operators for move up and
move down seem to be unused, but I notices they had the same problem, so
I added the update there as well.

Reviewed By: sybren

Differential Revision: https://developer.blender.org/D12174

GPencil: Fix Noise Modifier Randomize Panel disabled

Fix regression introduced in rB34b213d60472

Reviewed By: antoniov

Differential Revision: https://developer.blender.org/D12398

GPencil: Fix subdivision modifier disabled on strokes with 2 points

Fixes the regression introduces in rB29f3af952725 . The subdivision modifier used to work on two point strokes with simple mode but not with catmul clark. Now it will work with simple mode and in case of catmull clark mode it will still use simple mode on these strokes.

Differential Revision: https://developer.blender.org/D12397

Fix T90742: Gpencil ghost point on selection

Reviewed By: fclem, filedescriptor

Maniphest Tasks: T90742

Differential Revision: https://developer.blender.org/D12259

Modifier: smooth interpolation support

Add an option to the mask modifier to use the vertex weights to generate
smooth in between geometry, instead of just deleting non complete faces.

This can be used to make all sorts of smooth dissolve animations
directly with geometry, which are usually hacked together with shaders.
It also allows for implicit function plotting using geometry nodes and
boolean like operations on non manifold geometry with the proximity
modifier.

Reviewed By: campbellbarton

Ref D10979

GPencil: Fix unreported switch direction not flipping weights

There was an unreported bug that switch direction would not switch the order of the vertex group weights. This caused join to do it wrong as well.

Changed to use `BLI_array_reverse` function here to reverse both the normal points and the weights, therefore simplifying the code.

Differential Revision: https://developer.blender.org/D12251

GPencil: Convert from Mesh copying Vertex Groups

This patch adds the missing ability to keep the vertex groups when converting to a grease pencil object. This is increadible useful to create rigged grease pencil objects which move together with rigged meshes.

Differential Revision: https://developer.blender.org/D12249