Blender Git Loki

GPencil: Change handle type while transform

For vector and automatic handles we need to change their type to free
and aligned respectively while transforming.

Merge branch 'master' into greasepencil-edit-curve

GPencil: Apply GSoC changes

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 greasepencil-edit-curve

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

Merge branch 'master' into greasepencil-edit-curve

Merge branch 'master' into greasepencil-edit-curve

Merge branch 'master' into greasepencil-edit-curve

Merge branch 'master' into greasepencil-edit-curve

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

GPencil: Add snap to grid for curve points

GPencil: Implement basic extrude support

Merge branch 'master' into greasepencil-edit-curve

Merge branch 'master' into greasepencil-edit-curve

Merge branch 'master' into greasepencil-edit-curve

Merge branch 'master' into greasepencil-edit-curve

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

GPencil: Fix curve point deletion in cyclic curve