Blender Git Loki

Revert changes to addons_contrib submodule.

Removed umm_add_on branch specification.

Revert adding make dependencies for CUDA kernels

Revert enabling omni addon on startup.

Revert enabling OmniPanel addon on startup.

Reset addons_contrib to master.

To revert upadtes for the umm_add_on branch.

Revert updating nv addones in make.

Reverting calling update_nv_addons.cmd from make script.

Merge branch 'nv-usd-importer' of https://gitlab-master.nvidia.com/omniverse/blender into omniverse

Merge branch 'usd-importer-T81257-merge' of https://gitlab-master.nvidia.com/omniverse/blender into nv-usd-importer

Pulled latest umm_add_on addons_contrib branch.

Enable OmniPanel addon on startup

Added C calls to enable the OmniPanel addon
on startup.

Pull latest addons_contrib umm_add_on branch

This update includes the OmniPanel addon.

Updated addons_contrib submodule.

Pulled latest of the umm_add_on branch.

USD export: texture export fixes

Added logic to save in-memory baked textures,
which was previously failig because baked textures
have empty file paths. Also fixed logic to ensure
environment textures get exported.

USD importer: fixed typo

Fixed typo in copyright block comments.

USD exporter: add xform operator options

Add options to export scale/rotate/translate
and scale/orient/translate operators as
alternatives to exporting a matrix.

USD importer: updated copyright notices.

Explicitly acknowledged adaptation from the Alembic
importer implementation and copyright by Kevin Dietrich.

Merge branch 'nv-usd-importer' of https://gitlab-master.nvidia.com/omniverse/blender into omniverse

Merge branch 'usd-importer-T81257-merge' of https://gitlab-master.nvidia.com/omniverse/blender into nv-usd-importer

USD import: remove placeholder bezier curve code

The placeholder code for the unimplemented functionality
of importing bezier curves was causing a crash. It has
been removed until support for beziers can be properly
added.

Updated USDMeshReader comments