Blender Git Loki

Compositor: Made OpenImageDenoise optional, added CMake and build_env files to find OIDN

T61148: Particle properties can not be edited after keyframing

Was happening with certain settings for hair. Need to make a copy
of particle settings before modifying them via animation system.

PyAPI: use _PyObject_LookupAttr

Unlike PyObject_GetAttr, this avoids setting the attribute error
only to clear it - under some conditions.

Cleanup: use sys.platform instead of platform module

This was indirectly importing other modules we don't use at startup.
`sys.platform` is sufficient.

Python: bump minimum version to 3.7

All platforms use 3.7 now, supporting both increases chance some scripts
will fail on older versions.

Merge branch 'master' into asset-engine

Conflicts:
source/blender/blenkernel/BKE_global.h
source/blender/python/intern/bpy_app.c

Fix T61172: Crash in texture paint undo/redo

Mixing texture paint undo w/ memfile undo was crashing.

The gputextures and render result are written to the FileData.imamap
but weren't read back.

Undo System: add function to print undo steps

Useful for debugging.

Fix adding a paint texture slot not refreshing

Adding a new slot wasn't refreshing when the
object had no material.

Merge branch 'master' into temp-clang-format

UI: Use 'None' label instead of 'No' for Physics Type

Matches other enums in particle settings and pretty much all over Blender.

Cleanup: Typos in comments (to to)

UI: clarify ruler tooltip text

See T61151

GP: Fix compiler error

T61140 Shortcut Eraser and Eraser are not the same

Set default eraser with the last eraser used, and remove the toggle button from UI panel.

partial fix for wrong rotation when converting to keyframes

forgot to initialize ob->quat for passive objects, they are most likely in euler rotation
mode still and the ob->quat seems not automatically in sync

Fix typos

Fix T60753: Graph Editor showing cache curves regardless of filters

This commit adds a datablock filtering option for cache files channels,
so that a shot with lots of these in addition to standard animation
(e.g. the Spring production files) don't become bogged down by these.

Furthermore, these channels also respect the "Only Selected" toggle too now.

Cleanup: trailing commas

Needed for clan-format not to wrap onto one line.

Merge branch 'master' into greasepencil-object