Blender Git Loki

USD: clearer explanation of when to override `get_id_name()`

USD: add `_` suffix to non-public member variables

USD: changed C++ to C comments

USD: separate typedef `DupliAndDuplicator`

USD: clarified TODO in AbstractHierarchyWriter

USD: added comment to explain 'instance'

USD: rewrapped comment (change in clang-format config?)

USD: consistent comment style

USD: Removed superfluous comment

USD: also stop job when `*stop = true`

USD: expanded explanation of `HierarchyContext::weak_export`

USD: replace `#define` with anonymous enum

USD: fixed copyright year in license blocks

USD: enable USD in Release configuration

USD: Replaced `#include "../usd.h"` with `#include "usd.h"`

USD: Also `include pxrTargets-release.cmake` when harvesting dependencies

USD: Added & corrected GPL license blocks

USD: Build improvements

- Removed the `USD_PATH` variable, expose `USD_ROOT_DIR` from `FindUSD.cmake`
instead.
- Properly call `find_package_wrapper(USD)` from `platform_unix.cmake`.
- Added USD files to `harvest.cmake`.
- Removed `external_python` from USD dependencies, as we don't use USD's
Python interface.
- Removed Fink and DarwinPorts support.
- Enable USD in `blender_full.cmake`

USD: build & install USD with 'make deps'

Automated test for USD's AbstractHierarchyIterator