Blender Git Loki

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

Cleanup: unused var

CMake: make recent bad level include explicit

This isn't something we should do,
each instance should be noted and removed.

Workbench: Basic Solid Studio

Currently uses static lighting. Will become HDRI lighting.
Added do_versions to set default drawtype_solid and drawtype_texture to
OB_LIGHTING_STUDIO. When View3D space is created drawtype_solid and
drawtype_texture are also set to OB_LIGHTING_STUDIO.

Current studio lighting uses a dot product to simulate static lighting.
Will need to be changed in the future with different lighting models.

Fix makesdna not respecting C++ comments

Tab after C++ comment broke parsing and didn't remove the line at all.
Was there since 2002 at least, probably confused some peeps.

This means commented out code was actually written to SDNA.

Object Mode: Outlines: Fix precision issue on intel GPU.

Eevee: Use textureGather for minmaxZbuffer downsampling.

I haven't noticed any performance improvement but it could be more important
for other hardware. At least it's not slower!

Workbench: clean up the viewport shading code

- added the drawtype_solid, drawtype_wireframe, drawtype_texture to
View3D
- enabled workbench panels for important render engines
- merged workbench_materials to solid_flat_mode. All draw modes will get
its own fast implementation in the workbench

Cleanup: unused vars, long lines

UI: Perf: Improve Dopesheet performance.

GWN: IMM: Add util function to batch several immRecti/immRectf

Remove player from buildbot part II

Remove player from buildbot

Cleanup: remove modules that were only used by the game engine.

DRW: Perf: Early out empty passes.

Add overridable control to 'edit' feature of custom props.

Add generic bpy API to check if a property is overridable, and to set overridable status of custom props.

Update/improve handling of 'overridable' status of properties.

Main new thing in this commit is ability for real IDProps (aka custom
properties) to be set as overridable or not, they are not by default.

Remove Shift+F2 and other related BGE keymaps

Reported by Pablo Vazquez (venomgfx)

Remove game properties in image editor

The following properties were used by the Blender Game Engine and no longer
need to be around:

* Animated
* Tiles
* Clamp
* Mapping