CMake: Fix linking of ffmpeg_test on macOS

Part of the issue was missing library path to png library.
Other part was missing iconv passed to linker.

Codesign: Fix abort when xcrun returns non-zero code

Codesign: Allow input be relative path

Merge branch 'blender-v2.82-release'

Fix numaapi on PowerPC platforms

Seems that previous fix didn't work in all cases: Debian's build
environment didn't fully detect endianess, possibly due to typo,
possibly due to difference in various environments.

Using define magic from a more battle-tested project seems a safe
way to go.

There are more changes than just PPC since the upstream commit contains
full re-synchronization of all defines.

This commit updates numaapi to a latest library version from upstream.

Fix T73029: Crash transforming object

Was caused by recent animation backup added to depsgraph as a part of
another bugfix.

This commit effectively disables the animation backup, restoring bug
related on handlers, but makes it possible to interact with objects
again.

Will re-iterate over handlers+animated properties.

Depsgraph: Guarantee order of backup of action and ID using it

It was possible to have object copy-on-write happening during
action's copy-on-write, which was causing access to a freed
memory from animation backup.

Solves crash reported in T73029.

Depsgraph: Fix wrong access to animated properties

Copy-on-write backuyp was trying to read float from an array property,
which is wrong.

This is part of T73029.

Refactor: Make construction of resolved RNA path reusable

It is somewhat different from RNA_path_resolve_property_full(), mainly since it's
properly setting array index from the f-curve.

Fix T71908: Animated properties are lost after frame-post handler

The issue was caused by special handling of animation update after
manual edits in frame_post handler: to avid loss of manual edits
done on top of animated property. This was done as a separate pass
for non-animation update after frame_post did modifications.

This caused some other side-effect: non-modified animated property
was re-setting to the value which is used in the viewport.

Idea of this solution is simple: preserve values which came from
animation update through copy-on-write process. The actual process
of this is a bit involved: need to decode RNA path and do it twice
since f-curve might point to a sub-data which pointer will change.
Since this is only done for non-active depsgraph (aka depsgraph
used for render pipeline) this is probably fine since all this
extra overhead is just a fraction of overall render process.

Differential Revision: https://developer.blender.org/D6330