Blender Git Loki

Use "true" defaults for selection fields

Support field for curve set spline type selection

Add a node to store a field in a geometry and output an anonymous attribute

Rename the "Attribute Fill" node to "Store Persistent Attribute"

Merge branch 'master' into soc-2021-porting-modifiers-to-nodes-extrude

# Conflicts:
# source/blender/blenkernel/BKE_node.h

Merge remote-tracking branch 'origin/soc-2021-porting-modifiers-to-nodes-extrude' into soc-2021-porting-modifiers-to-nodes-extrude

# Conflicts:
# source/blender/bmesh/intern/bmesh_mesh.c
# source/blender/bmesh/intern/bmesh_mesh.h
# source/blender/nodes/NOD_static_types.h
# source/blender/nodes/geometry/nodes/node_geo_extrude.cc

added side selection.

Windows: Add support to compile python apid docs from make file

Remove attribute nodes that have been made redundant

Merge branch 'master' into temp-geometry-nodes-fields-prototype

Put "n" on newline

Remove more curly braces

Add key arg to id_properties_ui doc

Free unused result in failure cases

Add custom data comparison for generic attributes

Generic attributes CD_PROP_* comparison is added in customdata_compare
Checks for built-in as well as user created attributes.

Reviewed By: JacquesLucke

Differential Revision: https://developer.blender.org/D12137

Write to a temporary local copy of the UI data

Xcode: support cmake options for grouping in folders

The Xcode IDE can also benefit from the options:
- WINDOWS_USE_VISUAL_STUDIO_SOURCE_FOLDERS
- WINDOWS_USE_VISUAL_STUDIO_PROJECT_FOLDERS

So add suport to these options and also renames them as they are no
longer limited to just Windows and Visual Studio.

Reviewed By: brecht, ankitm

Differential Revision: https://developer.blender.org/D12132

Action Constraint: add Split Channels Mix choices from Copy Transforms

Practice shows that when combining actions and direct animation
it is usually best to combine location, rotation and scale
separately, which is implemented by the Split Channels modes
recently introduced in D9469 for Copy Transforms. This completes
the same set of 6 choices for the Action Constraint.

The default for new constraints is changed to the newly
added Before Original (Split Channels) mode.

The original patch is motivated by Loic Pinsard, who created
an addon that does the equivalent of this feature by splitting
the action into two, separating location and rotation+scale.

Differential Revision: https://developer.blender.org/D7547

Rename IDP_free_ui_data -> IDP_ui_data_free

Split setting defaults to a separate function for int and float