Blender Git Loki

UI: Replace color by material previews in list

To make more consistent the UI, the list of colors must shows the preview, not the old color boxes.

Besides, the new materials are more complex that a simple color box and the image was not representative.

Merge branch 'blender2.8' into greasepencil-object

Use live icons to template_ID for graese pencil materials

Add new parameter to template_ID to use live icon in button

By default, the button uses a predefined fixed icon, but in some situations it's better to show the preview (materials)

update to new OSD API again

Update to new OSD blender API

Make vertex wig sampling reflect the method in the paper

Fixed camera object tranformation matrix

Added time reporting and optimized osd_eval creation

Initial port to 2.8

Remove console warnings for tool bar

This will chanage in the future, but we can keep running without warnings with the current implementation.

Update Icon for materials when change something

Need update icon for compact list. becaus ethe thumbnail is not used.

Add missing weight data management in RNA function

This code was missing in the initial fix.

Cleanup: Remove duplicate code

Cleanup: Make RNA callback names more consistent with the general naming scheme used

RNA: Material filtering for GP Brush Settings

Merge branch 'blender2.8' into greasepencil-object

Code style fixes. Uncrustify processed.

RNA: Filter "normal" materials vs "GP Object" ones

RNA: Add pointer poll callbacks so that Annotation datablocks don't get used for GP Objects and vice versa