Blender Git Loki

GPencil: Reduce attenuate factor

GPencil: Improve color blending in Tint

LANPR: Delete redaundant functions.

LANPR: Delete is_unit_transform() calls in the python scripts.

GPencil: More work to make Tint operator

GPencil: Basic structure for Tint Tool

Still not working, but all pieces put in place.

move node inserters to separate file

fix memory leak

refactor mapping from vtree to multi functions

New VirtualNodeTree implementation

GPencil: Fisrt steps to create new Tint Brush type

Merge branch 'master' into greasepencil-object

Merge branch 'master' into greasepencil-object

Merge branch 'master' into greasepencil-object

Conflicts:
release/scripts/addons
source/blender/editors/gpencil/gpencil_paint.c

Gpencil: Don't use checkbox for stroke duplication modifier.

Merge remote-tracking branch 'origin/master' into temp-npr-gpencil-modifiers

Gpencil: Use new_from_existing_style() to create stroke in the modifier.

Gpencil: Add BKE_gpencil_add_stroke_existing_style() function.

This additionally copies the temp drawing color fields in gps->runtime.
So that when adding new strokes in the modifier the style is preserved.

Gpencil: MultiStroke -> Multiple Strokes

Gpencil: Add tip length to length modifier.

So that we can better align the tip points when extending and avoid jittering.