Blender Git Loki

Outliner: Implement 3 levels of viewport visibility

Now collection and objects can be either:
* Hidden for all the view layers.
* Hidden for a view layer but not necessarily for all others.
* Visible for a view layer but not necessarily for all others.

Regarding icons: Whatever we decide to use for the "Hidden for all view
layers" needs to be a toggle-like icon. Because when viewing "Scenes"
instead of "View Layer" in the outliner we should be able to edit the
collection "Hidden for all the view layers" as an on/off option.

See T57857 for discussion.

Outliner: eyes for collection affect collection visibility

As oppose to affect the collection objects' visibility.

Per view-layer collection visibility

[re-committing]

We still control this in the viewport collections visibility menu. But
now we are actually changing the visibility of the collections, not of
the objects.

If a collection is indirectly invisible (because one of its parents are
invisible) we gray it out.

Also if you click directly in the collection names, it "isolates" the
collection by hiding all collections, and showing the direct parents and
all the children of the selected collection.

Development Note:

Right now I'm excluding the hidden collections from the depsgraph.
Thus the need for tagging relations to update.

If this proves to be too slow, we can change.

Cleanup: ensure '_END' macros end with a semicolon

Missing these breaks auto-indent for editors that don't expand macros.

Remove from Local View operator

This was the old, obscure, little known, M shortcut operator when in local view
back in the 2.7x days.

Cleanup: name macros w/ matching BEGIN/END

Merge branch 'master' into blender2.8

Cleanup: name macros w/ matching BEGIN/END

Merge branch 'master' into blender2.8

Cleanup: style

Cleanup: duplicate include

Cleanup: style

Fix sculpt app-template editing the users startup

PyAPI: add load_factory_startup_post handler

Needed so we can apply changes to the startup file,
only in the case when it's load loaded from a user-saved startup.

Merge branch 'master' into blender2.8

Cleanup: unused return arg

Workbench: StudioLight: Fix worldspace rotation

Workbench: Cleanups & Simplifications

* Move the curvature computation to the cavity pass: One can argue it's not
the best performance wise (it gets a tiny perf pernalty if it is done
alone without the ssao), but it make the code cleaner and reduce
considerably the number of shader variation possible.
* Lower shader variation to 2^8 instead of 2^12

GPUTexture: Add support for GL_R16 texture format

attempt for fixing fake cloth + dynamic fracture