Blender Git Loki

GPencil: Simplify adaptive for bezier strokes

This commit adds the simplify adaptive algorithm for bezier strokes.
The algorithm works by calculating the error produced by removing each
curve point and then dissolving the ones under the defined threshold.

Merge branch 'temp-gpencil-bezier-stroke-type' of git.blender.org:blender into temp-gpencil-bezier-stroke-type

GPencil: Cleanup: Small cleanup in curve draw

Merge branch 'master' into xr-actions-D9124

XR: Add op_name property to XrActionMapItem

Improves readability over operator ID string when displaying action
properties.

replace std::variant with std::any

Revert edit to blender_default.py

Leftover from keymap->actionmap refactor.

EEVEE: Enable GPencil Material Cast Shadows by default

Merge branch 'master' into temp-gpencil-io

Merge branch 'master' into greasepencil-object

Merge branch 'master' into eevee-gpencil

Merge branch 'master' into temp-gpencil-bezier-stroke-type

LineArt: Fix compiler error for ob->id.orig_id != _rb->_source_object

Put the blender file basename in comment in the header of the .mtl file.

BLI: add macro to indicate unreachable code

Merge branch 'master' into soc-2020-io-performance

GPencil: Use active stroke in select

GPencil: Fix box select keymap

Merge branch 'temp-gpencil-bezier-stroke-type' of git.blender.org:blender into temp-gpencil-bezier-stroke-type

GPencil: Fix keymap