Blender Git Loki

Bring back unintentionally removed error print

Workbench: Draw random object colors

Basic implementation hashes the ob->id.name. In the future we should use
an golden ratio offset algorithm as it can make a better random
palettte.

Topbar: disable redo properties in topbar entirely for now, behind #ifdef.

This is going to be different with the tool / command separation plans, so
let's not confuse users for now.

Fix error from one of the merges, this line should have been removed.

Workbench: drawtype_* => drawtype_options, drawtype_lighting

In the new design the lighting is shared across the drawtypes.
the drawtype_options will be used for viewport draw engine settings

Workbench: Face orientation blending

Merge branch 'blender2.8' into blender2.8-workbench

Workbench: Face orientation overlay

- Removed the depth pass as it will reuse the depth pass of the render
engine
- Used gl_FrontFacing to determine the facing
- Blender the result with the render engine result

Static overrides optimization: 30% quicker.

use stack instead of always allocating memory for RNA paths of checked
properties! From average 167ms to 118ms here with Autumn rig... Still a
lot to improve, but that's already much better.

Edit Mesh: multi-object support for 'Symmetrize'

Depsgraph: Add utility functions to go from evaluated to original datablock

Fix Tint and Hue/Saturation modifiers

Now the modifiers don't use the palettecolor pointer

Merge branch 'master' into blender2.8

Fix usage of lib filepath in previous own commit...

Merge branch 'master' into blender2.8

Add debug tool to check validity of current file *before* saving.

It is hidden behind the --debug-io flag for now.

Idea is to try to catch broken libraries state in current Main before we
actually write the file on disk, should help catching and understanding
what happens in Spring corruption cases.

Workbench: Added the basics for the OverlayMode

Implemented the face orientation overlay for testing.
Overlay mode is only drawn when there are overlays to be rendered.
The overlay mode is rendered before the object mode.

Remove Armature Sketching & Retarget

While the feature is interesting, it's not much from what we can tell.

Retargeting is an important feature but needs
to fit in better with typical animation work-flows.

See: T52809

Edit Mesh: use a single report for remove doubles

Report all doubles removed instead of report per-object.

Also correct use_unselected check.

Edit Mesh: Correction to previous commit

The operation is based on faces, not vertices