Add license and classifiers metadata (#1213) (#1214)

* Add license and classifiers metadata

Co-authored-by: Matt Martz <matt@sivel.net>
(cherry picked from commit d1417e5)

setup.cfg

@@ -9,6 +9,24 @@ project_urls =
 description_file = README.md
 description_content_type = text/markdown
 license_file = LICENSE.md
+license = Apache Software License, Version 2.0
+classifiers =
+    Development Status :: 5 - Production/Stable
+    Environment :: Console
+    Intended Audience :: Developers
+    Intended Audience :: Information Technology
+    Intended Audience :: System Administrators
+    License :: OSI Approved :: Apache Software License
+    Natural Language :: English
+    Operating System :: POSIX
+    Programming Language :: Python :: 3.8
+    Programming Language :: Python :: 3.9
+    Programming Language :: Python :: 3.10
+    Programming Language :: Python :: 3.11
+    Programming Language :: Python :: 3 :: Only
+    Topic :: Software Development :: Libraries :: Python Modules
+    Topic :: System :: Systems Administration
+    Topic :: Utilities
 
 [options]
 python_requires = >=3.8