Blender Git Loki

Full refactor of Grease Pencil grid

After testing the old grid locked to view, the artist found that old system was not usable and they requested a grid locked to grease pencil object.

Also fixed some problems with fade object

UI: Change old Grease Pencil Paper and remove color

Now, the color is always white. We still keep internally the color field because maybe we reuse it in the future.

Separate Paper and Grid and rename

Merge branch 'blender2.8' into greasepencil-object

Conflicts:
source/blender/makesdna/DNA_view3d_types.h

Fix snap operator

There was a problem updating the scene due depsgraph missing tags

UI: Move draw on back button after lock options

UI: Remove menu icons

Implement Presets for Brush options

This is the first step to create a set of predefined settings.

UI: Add additive drawing option to top header

This option was a menu option and must be a switch.

Merge branch 'blender2.8' into greasepencil-object

UI: Move lock options to Left Top Header

These options were not tool parameters but a general option, so we move to the same UI location used in mesh sculpt.

UI: Replace Weight Paint menus

Also some preparation for other modes

UI: More changes in menus

Fix: Forgot to rename a few properties in earlier RNA/DNA commit

Fix: Refresh issues in Topbar with Grease Pencil and Annotations

Cleanup: Remove unused code

RNA/DNA changes to further decouple Grease Pencil and Annotation settings where clashes occurred

* Decouple stroke placement settings for 3D view
* Ensure that proper thickness controls are used in the topbar

Fix: Don't show GP Object's layer data in the Annotation topbar settings

Merge branch 'blender2.8' into greasepencil-object

Merge branch 'blender2.8' into greasepencil-object