This shaves off ~40-50% of the time to do the Use Normal Data
calculations in my tests.

It is *...

Gives very small (<0.5s) improvements on big models.

Add cache option to BinaryData.get_data_from_accessor

Importer: big performance bump in mesh creation

Previously there was just one list of shapekey names for the whole
gltf object. Logically there ...

Gives big performance wins on large models. Also now supports
>4 influences for skinning.

Removes code duplicated across the bone/node/weights animation
classes.

Setting the keyframe al...

Fix #683 : check that animation has some channels

Fix #680 Sanity check

Fix #677 cache bone when sampling is requested (by code, not by user)

Fix #671 Importer: better mutli animation object management

This is based on a simple work list; every time we create an action
we push a note onto gltf.nee...

Instead of looking up what action to use for bones based on its
name, just store the correct act...

This uses the faster foreach_set for filling fcurves.

Stashing tracks was temporarily disabled.

Using Apply Modifiers prevents exporting shape keys

Set CI timeout to 20m to avoid failure

- Workaround for slow blender279 download that times out on CircleCI

Cache bone anim

Export custom light ranges.

Fix #644 642

Fix #661

The exporter greedily combines the maps, and the separate transforms
are therefore lost.

Fix #655 set track name from gltf animation name

Fix #657 Importer: KHR_texture_transform for all textures

Fix #641 export shapekeys animation

Fix #619 Set active blender scene in gltf file as main scene