Blender Git Loki

Merge branch 'master' into soc-2020-outliner

Custom Menu : Fix icon edition

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

GPencil: Split transform code

This commit splits the grease pencil transform code, so that editcurves and strokes get handled separately.
This fixes a bug where in normal edit mode, proportional editing would be very slow.
The center point of the transform is also more predictable and behaves similar to bezier triples in curve objects.

Merge branch 'master' into soc-2020-testing-frameworks

Merge branch 'master' into greasepencil-object

Merge branch 'master' into greasepencil-edit-curve

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

Deleted physics fluid python test file

Saving last state of Fluids before deleting

Post review: Made a single try..catch, clean up

Collections: Add color tags to move and link menus

Cleanup: replace sizeof division with ARRAY_SIZE macro

Cleanup: use array syntax for sizeof with fixed values

Also order sizeof(..) first to promote other values to size_t.

Cleanup: replace elem_strcmp with elem_streq

This is used for equality and didn't have the same behavior as strcmp.

Clenup: use STREQ macro

Cleanup: remove redundant return parenthesis

Cleanup: GPU: Change gpu_context_private.h to C++ only header

DRW: Fix runtime error: shifting signed 32bits int

GPUBackend: Add new GPUBackend object to manage GL object allocations

This just set a global object responsible for allocating new objects
in a thread safe way without needing any GPUContext bound to this
thread.

This also introduce the GLContext which will contain all the GL related
functions for the current context.

# Conflicts:
# source/blender/gpu/intern/gpu_context.cc