Blender Git Loki

fmap-only option now only works with active object

This may change but for now match clay/eevee.

Limit only face-map option to active-pose armature

Show only face-map now works in clay/eevee engines

Merge branch 'blender2.8' into custom-manipulators

Fix typo

Sync with 2.8

Minor edits

Missed while updating custom-data again!

Rename object_fmap -> object_facemap_ops

Also ED_fmap -> ED_object_facemap

Remove face-maps from GPU buffer

We wont use this long-term so remove to make merge easier.

Missed CD update re-using PolyIndex

Cleanup: use BKE_object_facemap_* prefix for face-map operations

Rename facemaps -> object_facemaps

Since face-maps are just a property of objects, like BKE_object_deform.h

Re-use poly-index layer for face-map

Poly index was used for a short time when switching to BMesh.

This is practically the same kind of data,
any inconsistency between object face-maps will need to be supported
anyway - since object & mesh might span blend-files.

Add missing NULL check (face-map might not have a bone)

Accidentally removed last commit

Remove face-map DNA from pose-channels

Manually setting up links per bone to an object & facemap is tedious.

It's also going to cause quiet a bit of book-keeping internally to
ensure its always valid (linking, adding removing objects proxies).

Instead match the face-maps names to bones (as with vertex groups).
The DNA members have been moved into runtime cache.

This also adds an option for bones to use facemaps,
to avoid excessive searching on heavy armatures that might use very few
(if any) face-maps.

Merge branch 'blender2.8' into custom-manipulators

Use face-group color

Basic face-map drawing

No alpha yet, need to investigate