Blender Git Loki

Sculpt IPMask: Initial refactor to support step interpolation

header listeners

Merge branch 'master' into sculpt-dev

Merge branch 'master' into ui-asset-view-template

initial listeners for main region

Initial AssetList API & use it to load assets for the asset view tempate

Lots of hacks and temporary code here. I wanted a first working version to find
possible pain points before getting into details.

Basic idea is to store each asset library in an `AssetList`, with a globally
accessible storage. Internally the list uses the File Browser's `FileList`
which already does a fair amount of heavy lifting (threaded file & external
asset reading, lazy loading of visible previews, ...). The File Browser could
access the global asset-list storage as well.

The asset view template uses the new asset list to load and display the assets.

Current state: {F9856940}

Open TODOs: https://developer.blender.org/maniphest/query/M6RWFxFSDor3/#R

Merge branch 'master' into temp-lineart-contained

Merge branch 'master' into greasepencil-object

Merge branch 'master' into temp-gpencil-io

Merge branch 'master' into temp-gpencil-autokey

Tracking: Deal with gaps and long tracked segments better

When there is a gap during looking for a reference marker for the
scopes use the first marker after the gap. It helps re-positioning
the marker back in place after it got ocluded.

Also cosmetic changes on the labels.

add theme for spreadsheet editor

Tracking: Implement previous/next keyframe scopes

The purpose of these scopes is to give more visual reference to a VFX artist:
this way the artist can (re)position the marker more accurately when it starts
to slide. Before this change it was always more of a guess work about where
exactly the marker was at the previous keyframe.

There are some weak aspects of the patch related on some rather annoying
duplicated lines about calling an utility function for each of 3 scopes.
Ideally there needs to be some sort of foreach scope utility, but it is not as
trivial as it sounds since the editors implementation code is in ED module,
which is not available by blenloader and blenkernel.

The interface aspects still needs some work. Currently it is 3 scopes placed in
one column. Maybe it needs to be a flow, or some collapsable box?

Differential Revision: https://developer.blender.org/D10567

cleanup includes

Merge branch 'master' into geometry-nodes-mesh-primitives

delta compression: import changes for development branch

Merge branch 'master' into cycles_procedural_api

Spreadsheet: New spreadsheet editor (WIP).

Differential Revision: https://developer.blender.org/D10566

Merge branch 'master' into temp-gpencil-autokey

Merge branch 'master' into temp-spreadsheet-editor