Add support for building for Windows ARM64 devices

[anthony-linaro]

Description of Change(s)

Add support for Windows ARM64 devices.

This was tested using the following command line:

python build_scripts/build_usd.py --no-python --onetbb --tests --no-imaging C:/WoA/OpenUSD/build_dir

Python is currently switched off due to lack of support for PySide on these devices. I am looking at that seperately.

I also had to disable imaging, as building boost appears to be broken when using newer CMake versions (similar issue to #3285)

TBB is set to OneTBB, as 2020u3 doesn't support these devices.

I also had to make a small modification in testWrapper.py, and change line 134 to pathPattern = pathPattern + r'(\S*)', as otherwise the escape sequence was invalid.

Checklist

[x] I have created this PR based on the dev branch

[x] I have followed the coding conventions

[ ] I have added unit tests that exercise this functionality (Reference:
testing guidelines)

[x] I have verified that all unit tests pass with the proposed changes

[x] I have submitted a signed Contributor License Agreement (Reference:
Contributor License Agreement instructions)

[jesschimein]

Filed as internal issue #USD-10450

❗ Please make sure that a signed CLA has been submitted!

[jesschimein]

/AzurePipelines run

[azure-pipelines]

Azure Pipelines successfully started running 1 pipeline(s).

[anthony-linaro]

CLA sorted - approved by Tim Palmer

[pmolodo]

Any reason why the testWrapper.py change you mentioned isn't included here? Otherwise, lgtm

[anthony-linaro]

I figured it was more related to the version of python I have installed (3.12.5), rather than the one used for validation on other devices - as I didn't have those devices/versions to hand, and knew the script already worked as-was on them, I opted not to change it

[nvmkuruc]

Could the platform module be used here?
https://docs.python.org/3/library/platform.html#module-platform

[anthony-linaro]

(repost from correct account)

It could be, but problems arise when running an emulated x64 version of python (which is easy to do by mistake, as that's what the website gives you by default).

This way checks the name of the processor directly, which is not affected by emulation.

[asluk]

"Python is currently switched off due to lack of support for PySide on these devices. I am looking at that seperately."

Hi @anthony-linaro , per our call yesterday, you also mentioned that the python bindings are failing to compile -- can you post the error messages you are seeing there?

"I also had to disable imaging, as building boost appears to be broken... "

@sunyab , is it expected that the command line

python build_scripts/build_usd.py --no-python --onetbb --tests C:/WoA/OpenUSD/build_dir

would attempt to build boost in v24.11+ ?

Thanks all!