Add files necessary for pip package upload

source/python/LICENSE

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+MIT License
+
+Copyright (c) 2019-2022 Don Cross <cosinekitty@gmail.com>
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

source/python/pyproject.toml

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+[build-system]
+requires = [
+    "setuptools>=42",
+    "wheel"
+]
+build-backend = "setuptools.build_meta"

source/python/setup.cfg

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+[sdist]
+formats = zip
+
+[metadata]
+license_file = LICENSE

source/python/setup.py

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+from setuptools import setup
+
+setup(
+    name='astronomy-engine',
+    version='1.0.1',
+    description='Astronomy calculation for Sun, Moon, and planets.',
+    long_description=open('README.md').read(),
+    long_description_content_type='text/markdown',
+    author='Donald Cross',
+    author_email='cosinekitty@gmail.com',
+    url='https://github.com/cosinekitty/astronomy',
+    license=open('LICENSE').read(),
+    classifiers=[
+        "Intended Audience :: Science/Research",
+        "License :: OSI Approved :: MIT License",
+        "Programming Language :: Python :: 3.5"
+    ]
+)