Create pyproject.toml

[yotmic]

Add pyproject.toml to solve install error:
ModuleNotFoundError: No module named 'torch'

repreduce issue:
'''
pip install "git+https://github.com/facebookresearch/pytorch3d.git"
'''

'''
Collecting git+https://github.com/facebookresearch/pytorch3d.git
Cloning https://github.com/facebookresearch/pytorch3d.git to /tmp/pip-req-build-gsjggbro
Running command git clone --filter=blob:none --quiet https://github.com/facebookresearch/pytorch3d.git /tmp/pip-req-build-gsjggbro
Resolved https://github.com/facebookresearch/pytorch3d.git to commit 0a59450
Installing build dependencies ... done
Getting requirements to build wheel ... error
error: subprocess-exited-with-error

× Getting requirements to build wheel did not run successfully.
│ exit code: 1
╰─> [20 lines of output]
Traceback (most recent call last):
File "/home/yotam/dev/tt/.venv/lib/python3.12/site-packages/pip/_vendor/pyproject_hooks/_in_process/_in_process.py", line 353, in
main()
File "/home/yotam/dev/tt/.venv/lib/python3.12/site-packages/pip/_vendor/pyproject_hooks/_in_process/_in_process.py", line 335, in main
json_out['return_val'] = hook(**hook_input['kwargs'])
^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/home/yotam/dev/tt/.venv/lib/python3.12/site-packages/pip/_vendor/pyproject_hooks/_in_process/_in_process.py", line 118, in get_requires_for_build_wheel
return hook(config_settings)
^^^^^^^^^^^^^^^^^^^^^
File "/tmp/pip-build-env-02cvlml8/overlay/lib/python3.12/site-packages/setuptools/build_meta.py", line 331, in get_requires_for_build_wheel
return self._get_build_requires(config_settings, requirements=[])
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/tmp/pip-build-env-02cvlml8/overlay/lib/python3.12/site-packages/setuptools/build_meta.py", line 301, in _get_build_requires
self.run_setup()
File "/tmp/pip-build-env-02cvlml8/overlay/lib/python3.12/site-packages/setuptools/build_meta.py", line 512, in run_setup
super().run_setup(setup_script=setup_script)
File "/tmp/pip-build-env-02cvlml8/overlay/lib/python3.12/site-packages/setuptools/build_meta.py", line 317, in run_setup
exec(code, locals())
File "", line 15, in
ModuleNotFoundError: No module named 'torch'
[end of output]

note: This error originates from a subprocess, and is likely not a problem with pip.

'''

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[bottler]

As discussed on a few issues e.g. #1419 , I don't think we can merge something like this. Similar discussion on another torch extension library at facebookresearch/xformers#940 .