Blender Git Loki

Outliner: Sync selection from sequencer

Sequencer selection operators now sync to outliners. Still needs
to sync the other direction

Outliner: Draw more sequencer icons

Not all of the sequencer icons had been added to the outliner.
Some are still drawing with editor/modifier colors so they will
need their own icons. Or some other code workaround.

Merge branch 'master' into soc-2019-outliner

Cleanup: rename set_inverted_drawing, move to GPU_state

Fix T61360: Smooth Weights affects all objects

Fix crash unlinking non-ID types in the outliner

Fix submodules hash in previous commit

Fix T65468 Nurbs: Broken display when hiding control points

Updated tooltips for operators 'Transfer Mix' and 'Join Shapes'. Fixes typo

GPencil: New python API for closing strokes with geometry

Adds to API the last function created to close strokes in a previous commit.

GPencil: Add new parameter to python API for activating the new created frame

Sometimes is required to enable the frame created and new "active" parameter allows to do that.

Use: `gpl.frames.new(5, active=True)`

Fix T65974 Workbench: transparency rendering broken

Workbench: Combine Xray Alpha with object/material alpha ...

... instead of overiding it (previous behavior).

In practice it's not really noticeable.
This means an object with alpha will never be more opaque when enabling
xray.

Fix T65771 Eevee: Volume Emission not working if density is zero

Outliner: Fix range select sometimes leaving hidden elements selected

The range select opearator sometimes would leave other elements
selected when changing the active element. This is fixed by
clearing the selection each time the operator runs.

Cleanup GHOST_Xr types and functions

* Move GHOST_Xr types to GHOST_Types.h
* Add GHOST_XrPose. We'll have to pass around pose data at multiple
places.
* Don't require extra call to prepare session rendering, handle
everything through GHOST_XrSessionStart
* Naming

Code refactor & Performance improvement

UI: increase size of scale gizmo circle

The scale gizmo wasn't working usefully for uniform scale.

Gizmo: support for filled circle with inner non-zero radius

Needed for changes to the scale gizmo.

initial point randomization accross surface