ENH: Modernize package setup

[jhlegarreta]

Modernize packate setup:

• Adopt PEP621 to store project metadata in pyproject.toml. Remove the setup.py file.
• Adopt PEP518 to specify the build system requirements for the package.
• Adopt PEP631 to specify the package dependencies in the pyproject.toml file, and remove the requirements,txt.
• Transition to setuptools_scm dynamic versioning system.

Change the GHA package test workflow file accordingly.

Add the _version.py file to the .gitignore file list.

Documentation:
https://peps.python.org/pep-0621/
https://packaging.python.org/en/latest/specifications/pyproject-toml/#pyproject-toml-spec https://peps.python.org/pep-0518/
https://peps.python.org/pep-0631/
https://setuptools.pypa.io/en/latest/index.html
https://setuptools-scm.readthedocs.io/en/latest/

[jhlegarreta]

With commit 62f028c Python 3.9 both minimal and latest are installing the package correctly, but the tests are failing because the NiBabel version is too old with respect to the NumPy version:

For minimal 4 out of 47 tests fail:

tract_querier.tractography.tests.test_saveload_trk ... ERROR
tract_querier.tractography.tests.test_saveload ... ERROR
tract_querier.tractography.tests.test_tractography.test_saveload_trk ... ERROR
tract_querier.tractography.tests.test_tractography.test_saveload ... ERROR

The above exception was the direct cause of the following exception:

Traceback (most recent call last):
  File "/opt/hostedtoolcache/Python/3.9.20/x64/lib/python3.9/site-packages/nose/case.py", line 198, in runTest
    self.test(*self.arg)
  File "/opt/hostedtoolcache/Python/3.9.20/x64/lib/python3.9/site-packages/nose/util.py", line 620, in newfunc
    return func(*arg, **kw)
  File "/home/runner/work/tract_querier/tract_querier/tract_querier/tractography/tests/test_tractography.py", line 201, in test_saveload_trk
    new_tractography = tractography_from_trackvis_file(fname)
  File "/home/runner/work/tract_querier/tract_querier/tract_querier/tractography/trackvis.py", line 79, in tractography_from_trackvis_file
    tracts_and_data, header = trackvis.read(filename, points_space='rasmm')
  File "/opt/hostedtoolcache/Python/3.9.20/x64/lib/python3.9/site-packages/nibabel/trackvis.py", line 233, in read
    streamlines = list(streamlines)
RuntimeError: generator raised StopIteration

and for latest:

  File "/opt/hostedtoolcache/Python/3.9.20/x64/lib/python3.9/site-packages/nibabel/quaternions.py", line 31, in <module>
    MAX_FLOAT = np.maximum_sctype(np.float)
  File "/opt/hostedtoolcache/Python/3.9.20/x64/lib/python3.9/site-packages/numpy/__init__.py", line 324, in __getattr__
    raise AttributeError(__former_attrs__[attr])
AttributeError: module 'numpy' has no attribute 'float'.
`np.float` was a deprecated alias for the builtin `float`. To avoid this error in existing code, use `float` by itself. Doing this will not modify any behavior and is safe. If you specifically wanted the numpy scalar type, use `np.float64` here.
The aliases was originally deprecated in NumPy 1.20; for more details and guidance see the original release note at:
https://numpy.org/devdocs/release/1.20.0-notes.html#deprecations

Python 3.10 is failing because the minimal version requires a more recent NumPy version (NumPy started supporting Python 3.10 starting 1.21.0), and because nose is not packaged for the last few Python releases:

  File "/opt/hostedtoolcache/Python/3.10.15/x64/lib/python3.10/site-packages/nose/suite.py", line 106, in _set_tests
    if isinstance(tests, collections.Callable) and not is_suite:
AttributeError: module 'collections' has no attribute 'Callable'

So first is to update NiBabel to a more recent version. This will involve refactoring/removing the tract_querier.trackvis module and the related methods/tests, as NiBabel deprecated its trackvis module in 3.0.0.