Blender Git Loki

Rename exportable_meshes to exportable_as_mesh

This change is to make it more clear that this is not a list of
Blender meshes, but objects that are being exported in Mesh form.
Same for NURBS curve.

Refactor: Conform to style guide, add documentation.

Rename classes OBJImporter > OBJParser, OBJParentCollection >
OBJmportCollection.

Move OBJRawObject items to private access & use getters. Parser class
is set to its friend since it edits the Raw object heavily.

Break OBJMeshFromRaw and OBJCurveFromRaw into smaller functions with
one responsibility.

Add comments wherever required.

Use int instead of uint.

Remove typedef, use Span.

Merge branch 'master' into property-search-ui

Outliner: Sort bones alphabetically

Outliner: Cleanup sorting

Merge branch 'master' into soc-2020-outliner

Property Search: Fix graying out tabs with no results

Separate formatting from space text

This is preparation for reusable syntax highlighting

GPencil: Missing rename in previous commit

GPencil: Cleanup - rename trace functions

Property Search: Improve debug printing

Merge branch 'master' into property-search-ui

GPencil: Update defaults for curve resolution

Set active NURBS of a curve; set object group.

Correction for `CU_NURB_ENDPOINT` being a valid `flagu` value , not
`flag`.

Merge branch 'greasepencil-edit-curve' into soc-2020-greasepencil-curve

GPencil: Implement adaptive editcurve resolution

With adaptive curve resolution the arclength of a curve segment is
used to calculate the number of points between two control points.
This means that in general the stroke points are more spaced out.

GPencil: More changes to trace image

Cleanup code and tweaks

LineArt: Optimize details in chaining code.

Merge remote-tracking branch 'origin/lanpr-under-gp' into lanpr-under-gp

LineArt: Fuzzy chaining option and UI.