Blender Git Loki

Use stoi and stof instead of >> for faster parsing.

Parse UV coordinates and normals.

Adding UV to the mesh is not done yet.
Using `std:stoi` seems to add some benefits, so UVs will be added
to mesh after parser is complete.

Comment out an assert prevents running profiler on Mac.

Not sure why this assert is not known to the compiler used
when profiling.

GPencil: Select fill curves

The previous algorithm used the center of the selection to check if the
fill was selected. This uses the triangle data of the fill so it will
be a bit slower, but results in better select behaviour.

LineArt: Cleanup some texts

added sdf

updating to use SDF all over

LineArt: Fix compiler errors in Windows

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

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

GPencil: Implement box and lasso curve select

LineArt: Use orig_id for all object filtering.

PointCloud: Initial rendering support for Workbench

Also includes outline overlays. Removes the temp overlay drawing

Merge branch 'master' into soc-2020-io-performance

Directly create Mesh without using intermediate BMesh

LineArt: Cleanup code.

Speedup, using BVH tree to limit number of tri-tri intersect tests.

Intersection of my spheresphere test with n=16 (two uvspheres
with 16 rings and 32 segments overlapping), time went from
12.8 seconds to 2.3 seconds on my Mac. The n=32 test went from
195.1s to 8.9s.

Merge branch 'master' into mac_arm64

macOS: Enabled Embree on arm64.

This is using the arm port of Embree:
https://github.com/lighttransport/embree-aarch64

Since that repository does not have releases, I created a fork
on my personal github account:
https://github.com/skwerner/embree-aarch64

We could move this to the Blender github account instead.

Merge branch 'master' into lanpr-under-gp