Blender Git Loki

Refactor: use new api for direct linking preview image

Refactor: use new api for direct linking curvemapping and its callers

Refactor: use new api for direct linking gpencil modifiers and shaderfxs

Refactor: use new api for direct linking modifiers

Refactor: use new api for direct linking keying sets, node sockets and pose

Refactor: use new api for direct linking animdata

Fix T77456: Broken vertex paint undo on high-poly objects.

This is a critical fix that should also be backported to 2.83.1

Fairly stupid bug in fact, code detecting changes across undo steps was
assuming that each BHEAD (a block of data in blendfiles) would not be larger
than one memory chunk... Which is the case in alsmost every situation,
besides some super-heavy geometries, and other similar things (images
would also be affected e.g.).

Cleanup: Fix typo and other issues in some comment.

Fix typo in recent bone selection refactor

Thanks to @jbakker for pointing this out.

Refactor: use new api for direct linking paint curve, cachefile and workspace

Refactor: use new api for direct linking particlesettings, movieclip, mask, linestyle and palette

Refactor: use new api for direct linking armature, action, nodetree and brush

Refactor: use new api for direct linking lattice, world, camera, speaker, sound, lightprobe and collection

Refactor: use new api for direct linking light, vfong, text, ipo and key

Refactor: use new api for direct linking mball, material, texture and image

Refactor: use new api for direct linking mesh and curve

Refactor: use new api for direct linking scene and object

Refactor: use new api for direct linking hair, pointcloud, volume and simulation

Refactor: use new api for direct linking screen and gpencil

Refactor: use new api in direct_link_windowmanager