Blender Git Loki

UI: Include Stroke and Fill as subpanels of Surface Panel.

UI: Move Pass Index to separate Panel

UI: More changes in Viewport Display Panel

UI: Replace label to "Stroke Thickness"

UI: Rename label "Use in Render" to "View In Render"

Remove unused Layer Onion Skinning fields

These fileds are not used because the Layer override was removed in a previous commit.

Disable Onion Skinning for old Drawing methods

This code will be used for annotations and is not requiered.

Disable debug lines to avoid compiler error

Fixed include file error (caused by merge?)

Merge branch 'blender2.8' into greasepencil-object

Conflicts:
source/blender/depsgraph/intern/builder/deg_builder_relations.cc

Fix snake mode reload.

Now use one-time scene loading. Line/Polygon smooth added.

Cleanup: Fix comment

Fix uniform name

The uniform variable name was wrong.

UI: More changes in Fill panel

Fix some issues with pattern type.

Remove Onion Skinning override by Layer

This option is not required and only add complexity.

The UI panel was removed in a previous commit.

Uniform assign error fixed

Fixed snake line taper error induced by combined batch.

UI: Remove duplicate "Layer" Header text

Now these panels are subpanels of Layer, so it's better don't duplicate name.

Seperated different algorithms into 3 files. Init code minor changes.