Blender Git Loki

Merge branch 'ui-asset-view-template' into asset-browser-poselib

Merge remote-tracking branch 'origin/master' into asset-browser-poselib

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

Support passing operator to invoke on activating or dragging an item

An annoyance is that the operator names have to be passed to the template which
makes the already long argument list even longer.
Thought about a couple of ways to do this, unfortunately this is the only
decent way to do this that I see. There's also no way to pass operator options
currently.

Getting the handling to work correctly took some effort, and the code is not
exactly nice.

Note that even though we activate the item when calling the custom drag
operator (helps indicating the pose being blended for example), we only call
the drag operator then, not the activate one. They are never executed both.

Also note that this won't compile right now, I'll have to commit some changes
to master first.

Add utilities to temporarily append asset IDs

Uses the new `BLO_library_temp_xxx` functions, but deals with all the asset
specific file path building. This is a reasonable utility for the asset system
to have, it will probably be needed by more asset types than IDs.

Require identifier for asset view template usages

Needed if we want to support multiple different asset views in future.

Allow getting asset library and active asset handle via context

`CTX_wm_asset_library()` returns the active asset library from the workspace,
or the the Asset Browser one while inside that. The active asset handle is set
by the Asset Browser and the asset view UI template so that operators executed
via the template can access it.

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

Pose Library: expand blend operator poll function

Expand the `POSELIB_OT_blend_pose` poll function to check whether there
is an actively selected pose, and don't crash even if the operator gets
called regardless.

Pose library: prevent double report when no asset can be loaded

Pose library: make reports translatable

Enable the `pose_library` add-on by default

This new pose library is based on the asset browser, and will eventually
replace the built-in pose library. Because of this, it is enabled by
default.

Switch addons submodule to `asset-browser-poselib` branch

Switch addons submodule to `asset-browser-poselib` branch in the
`.gitmodules` file. This should affect any subsequent calls to `git
submodule update`.

Care should be taken when merging this branch back to master, because
this change should *not* be included.

Pose library: when blending, allow shift key for smaller increments of 1%

Animation: add `PBONE_SELECTED` macro to determine selection state of bones

Addons: use `asset-browser-poselib` branch

This commit sets the `release/scripts/addons` to its
`asset-browser-poselib` branch, with the aim that animators checking out
this branch on the main Blender repo also get the corresponding branch
in the addons repo.

Merge branch 'ui-asset-view-template' into asset-browser-poselib

Fix crash when showing empty shape-keys list

Cleanup: add const.

Python API: Expose CurveProfile Reset View function

Allow python access to the `reset_view` functionality which before
was only available through the menu. This was suggested for
consistency after D10561.

Differential Revision: https://developer.blender.org/D10595