Blender Git Loki

Add asset engine version to uuids list struct.

Add needed asset-related data to Library and ID structs.

Add 'bl_version' to asset engine type, needed to support asset engine in file read/write!

Fix asset engine resetting on every resize!

Only reset AE type to default in `file_init()` if current type is invalid!

Also, better handling of getting default AE type now.

Merge branch 'asset-experiments' into asset-engine

Merge branch 'master' into asset-experiments

Merge branch 'asset-experiments' into asset-engine

Conflicts:
release/scripts/startup/bl_ui/space_filebrowser.py
source/blender/makesrna/intern/rna_space.c

Merge branch 'master' into asset-experiments

Some tweaking to UI, try to make filebrowser header a bit more compact...

Merge branch 'asset-experiments' into asset-engine

Merge branch 'master' into asset-experiments

Better handling of tags in Amber.

Also adds some 'state' flags to AssetEngine, so that custom AE's setting changes
can be notified to filebrowser, as default internal ones are.

For now, we only have 'dirty filtering' and 'dirty sorting'.

Some minor cleanup in Amber code.

Merge branch 'asset-experiments' into asset-engine

Merge branch 'master' into asset-experiments

Conflicts:
source/blender/editors/space_file/filelist.c

Merge branch 'master' into asset-experiments

Fix crash in append/link on windows (sigh).

Fix newly created dir not going into rename state anymore.

Due to async dir listing...

Merge branch 'master' into asset-experiments

Merge branch 'master' into asset-experiments