Blender Git Loki

Minor clean-up.

Removed an unused variable.

Fix bitscan_reverse_uint on MSVC compiler

Was a mistake from the very beginning of implementation.

Buildbot: Switch WIndows builds to MSVC 2019

GPencil: Convert and Bake mesh animation to grease pencil strokes

This patch adds two options:

- Convert a mesh to grease pencil strokes.
- Bake the mesh animation into grease pencil strokes.

Both are related and must be included in the same patch.

Related to tasks: T77629 and T77630

Notice: The conversion is done for mesh edges and it's not considering any visibility clipping. All edges are exported, no matters if it's visible or not.

Example of Convert a Mesh to Grease Pencil strokes:

{F8606028}

This conversion was inspired by the technique used by @luamono in this tweet: https://twitter.com/luamono/status/1239983662176841730

Example of Bake Animation (the video is a little outdate, but the basic functionality is the same, only small changes in UI):

{F8606032}

Reviewed By: mendio, pepeland

Maniphest Tasks: T77629, T77630

Differential Revision: https://developer.blender.org/D7983

Fix T77803: IK Degrees of freedom drawing glitch

IK degrees of freedom is rendered using wires and a solid sphere. The
solid used the wireframe drawing what resulted into drawing glitches.
This patch adds a new shader to draw the solid shape.

Reviewed By: Cl�ment Foucault

Differential Revision: https://developer.blender.org/D8044

Buildbot: Support multiple workers talking to single codesign server

Is achieved by replacing hard-coded signed/unsigned file names with
"<uuid>" which acts as a "request ID". This way multiple workers can
put their requests into a single directory without collisions. The
code sign server will handle the requests sequentially in an unknown
order.

Buildbot: Don't use builder name in the build directory

The directory layout on worker goes as following:

<Worker>
<Builder Name>
blender.git/
build/
install/
lib/

Adding an extra <Builder Name> after build is redundant.

Differential Revision: https://developer.blender.org/D8045

CMake: Fix compilation errors related on missing dna_type_offsets.h

Some of the files were (indirectly) using dna_type_offsets.h without
adding dependency from bf_dna (which is needed to ensure the file is
generated prior to library compilation).

BLI: fix Map.foreach_item method

Merge branch 'asset-uuid' into asset-engine

Merge branch 'master' into asset-uuid

Merge branch 'greasepencil-edit-curve' into soc-2020-greasepencil-curve

GPencil: Add operator to enter strokes into curve edit mdoe

This operator creates an editcurve for all selected strokes that
do not have an editcurve already.

GPencil: Use error_threshold parameter in gpd

Cleanup: unused headers, spelling

Fix T61777: Proportional editing doesn't work with multi edit-mode

Cleanup: doxy sections for camera, collections, text & seqmodifier

Cleanup: Use LISTBASE_FOREACH in interface_panel.c

lattice appears working but will want to remove lattice cubes that do not contain mesh volume

debugging uniform lattice