skpkg: add pyproject.toml

Author: cadenmyers13

pyproject.toml

@@ -6,28 +6,28 @@ build-backend = "setuptools.build_meta"
 name = "diffpy.utils"
 dynamic=['version', 'dependencies']
 authors = [
-  { name="Simon J.L. Billinge group", email="simon.billinge@gmail.com" },
+  { name="Simon Billinge", email="sb2896@columbia.edu" },
 ]
 maintainers = [
-  { name="Simon J.L. Billinge group", email="simon.billinge@gmail.com" },
+  { name="Simon Billinge", email="sb2896@columbia.edu" },
 ]
 description = "General utilities for analyzing diffraction data"
-keywords = ["text data parsers", "wx grid", "diffraction objects"]
+keywords = ['text data parsers', 'wx grid', 'diffraction objects']
 readme = "README.rst"
 requires-python = ">=3.11, <3.14"
 classifiers = [
         'Development Status :: 5 - Production/Stable',
         'Environment :: Console',
         'Intended Audience :: Developers',
         'Intended Audience :: Science/Research',
-        'License :: Free To Use But Restricted',
+        'License :: OSI Approved :: BSD License',
         'Operating System :: MacOS :: MacOS X',
         'Operating System :: Microsoft :: Windows',
         'Operating System :: POSIX',
         'Operating System :: Unix',
         'Programming Language :: Python :: 3.11',
         'Programming Language :: Python :: 3.12',
-	'Programming Language :: Python :: 3.13',
+        'Programming Language :: Python :: 3.13',
         'Topic :: Scientific/Engineering :: Physics',
         'Topic :: Scientific/Engineering :: Chemistry',
 ]