Solve PyTorch Ops compilation error in Windows

[lumurillo]

Fixed different compilation error for the PyTorch operations in Windows.

• Bug fix (non-breaking change which fixes an issue): Fixes #
• New feature (non-breaking change which adds functionality). Resolves #
• Breaking change (fix or feature that would cause existing functionality to not work as expected) Resolves #

Motivation and Context

We need these operations functional to be able to upgrade the OpenVINO support in the Open3D ML module.

Checklist:

• I have run python util/check_style.py --apply to apply Open3D code style
  to my code.
• This PR changes Open3D behavior or adds new functionality.
  • Both C++ (Doxygen) and Python (Sphinx / Google style) documentation is
    updated accordingly.
  • I have added or updated C++ and / or Python unit tests OR included test
    results (e.g. screenshots or numbers) here.
• I will follow up and update the code if CI fails.
• For fork PRs, I have selected Allow edits from maintainers.

[update-docs]

Thanks for submitting this pull request! The maintainers of this repository would appreciate if you could update the CHANGELOG.md based on your changes.

[benjaminum]

lgtm

[ssheorey]

The CI in windows fails when CUDA is enabled:

-- Building PyTorch ops with CUDA
[297](https://github.com/isl-org/Open3D/actions/runs/13503073040/job/37726123886?pr=7140#step:9:298)-- Getting PyTorch properties ...
[298](https://github.com/isl-org/Open3D/actions/runs/13503073040/job/37726123886?pr=7140#step:9:299)-- Using top level CMAKE_CUDA_ARCHITECTURES for TORCH_CUDA_ARCH_LIST: 5.2+PTX
[299](https://github.com/isl-org/Open3D/actions/runs/13503073040/job/37726123886?pr=7140#step:9:300)-- Found Torch: C:/hostedtoolcache/windows/Python/3.8.10/x64/Lib/site-packages/torch/lib/torch.lib
[300](https://github.com/isl-org/Open3D/actions/runs/13503073040/job/37726123886?pr=7140#step:9:301)CMake Error at 3rdparty/cmake/FindPytorch.cmake:95 (set_target_properties):
[301](https://github.com/isl-org/Open3D/actions/runs/13503073040/job/37726123886?pr=7140#step:9:302)  set_target_properties Can not find target to add properties to: torch_cuda
[302](https://github.com/isl-org/Open3D/actions/runs/13503073040/job/37726123886?pr=7140#step:9:303)Call Stack (most recent call first):
[303](https://github.com/isl-org/Open3D/actions/runs/13503073040/job/37726123886?pr=7140#step:9:304)  cpp/open3d/ml/pytorch/CMakeLists.txt:7 (find_package)
[304](https://github.com/isl-org/Open3D/actions/runs/13503073040/job/37726123886?pr=7140#step:9:305)
[305](https://github.com/isl-org/Open3D/actions/runs/13503073040/job/37726123886?pr=7140#step:9:306)
[306](https://github.com/isl-org/Open3D/actions/runs/13503073040/job/37726123886?pr=7140#step:9:307)-- PyTorch         version: 2.2.2+cpu
[307](https://github.com/isl-org/Open3D/actions/runs/13503073040/job/37726123886?pr=7140#step:9:308)--                root dir: C:\hostedtoolcache\windows\Python\3.8.10\x64\lib\site-packages\torch
[308](https://github.com/isl-org/Open3D/actions/runs/13503073040/job/37726123886?pr=7140#step:9:309)--           compile flags:
[309](https://github.com/isl-org/Open3D/actions/runs/13503073040/job/37726123886?pr=7140#step:9:310)--            include dirs: C:/hostedtoolcache/windows/Python/3.8.10/x64/Lib/site-packages/torch/include
[310](https://github.com/isl-org/Open3D/actions/runs/13503073040/job/37726123886?pr=7140#step:9:311)--            include dirs: C:/hostedtoolcache/windows/Python/3.8.10/x64/Lib/site-packages/torch/include/torch/csrc/api/include
[311](https://github.com/isl-org/Open3D/actions/runs/13503073040/job/37726123886?pr=7140#step:9:312)--               libraries: torch
[312](https://github.com/isl-org/Open3D/actions/runs/13503073040/job/37726123886?pr=7140#step:9:313)--               libraries: torch_library
[313](https://github.com/isl-org/Open3D/actions/runs/13503073040/job/37726123886?pr=7140#step:9:314)--               libraries: C:/hostedtoolcache/windows/Python/3.8.10/x64/Lib/site-packages/torch/lib/c10.lib
[314](https://github.com/isl-org/Open3D/actions/runs/13503073040/job/37726123886?pr=7140#step:9:315)--               libraries: C:/hostedtoolcache/windows/Python/3.8.10/x64/Lib/site-packages/torch/lib/kineto.lib
[315](https://github.com/isl-org/Open3D/actions/runs/13503073040/job/37726123886?pr=7140#step:9:316)-- Pytorch_VERSION: 2.2.2+cpu, CUDAToolkit_VERSION: 12.4.99
[316](https://github.com/isl-org/Open3D/actions/runs/13503073040/job/37726123886?pr=7140#step:9:317)-- Found Pytorch: 2.2.2+cpu

When the CI is in Debug mode, that provokes an issue when loading the libraries:

Traceback (most recent call last):
[1078](https://github.com/isl-org/Open3D/actions/runs/13503073040/job/37726126632?pr=7140#step:20:1079)    File "generate_torch_ops_wrapper.py", line 211, in <module>
[1079](https://github.com/isl-org/Open3D/actions/runs/13503073040/job/37726126632?pr=7140#step:20:1080)      sys.exit(main())
[1080](https://github.com/isl-org/Open3D/actions/runs/13503073040/job/37726126632?pr=7140#step:20:1081)    File "generate_torch_ops_wrapper.py", line 144, in main
[1081](https://github.com/isl-org/Open3D/actions/runs/13503073040/job/37726126632?pr=7140#step:20:1082)      torch.ops.load_library(args.lib)
[1082](https://github.com/isl-org/Open3D/actions/runs/13503073040/job/37726126632?pr=7140#step:20:1083)    File "C:\hostedtoolcache\windows\Python\3.8.10\x64\lib\site-packages\torch\_ops.py", line 933, in load_library
[1083](https://github.com/isl-org/Open3D/actions/runs/13503073040/job/37726126632?pr=7140#step:20:1084)      ctypes.CDLL(path)
[1084](https://github.com/isl-org/Open3D/actions/runs/13503073040/job/37726126632?pr=7140#step:20:1085)    File "C:\hostedtoolcache\windows\Python\3.8.10\x64\lib\ctypes\__init__.py", line 373, in __init__
[1085](https://github.com/isl-org/Open3D/actions/runs/13503073040/job/37726126632?pr=7140#step:20:1086)      self._handle = _dlopen(self._name, mode)
[1086](https://github.com/isl-org/Open3D/actions/runs/13503073040/job/37726126632?pr=7140#step:20:1087)  OSError: [WinError 1114] A dynamic link library (DLL) initialization routine failed
[1087](https://github.com/isl-org/Open3D/actions/runs/13503073040/job/37726126632?pr=7140#step:20:1088)C:\Program Files\Microsoft Visual Studio\2022\Enterprise\MSBuild\Microsoft\VC\v170\Microsoft.CppCommon.targets(254,5): error MSB8066: Custom build for 'C:\Open3D\build\CMakeFiles\f0a16331fe8b63fe1a7e844c2ab37cbc\ops.py.rule;C:\Open3D\build\CMakeFiles\2f2f954b582449dd6ddddc8f96ee3e5d\python-package.rule;D:\a\Open3D\Open3D\cpp\pybind\CMakeLists.txt' exited with code 1. [C:\Open3D\build\cpp\pybind\python-package.vcxproj]