Python: Add Continuous Integration for Python

There are a lot of exceptions, but it's a start.
This will ensure that no more issues get added / that issues
get fixed before the code is added

00_Utilities/python/ci-requirements.in

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+pytest
+flake8
+mypy

00_Utilities/python/ci-requirements.txt

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+#
+# This file is autogenerated by pip-compile with python 3.10
+# To update, run:
+#
+#    pip-compile ci-requirements.in
+#
+attrs==21.4.0
+    # via pytest
+flake8==4.0.1
+    # via -r ci-requirements.in
+iniconfig==1.1.1
+    # via pytest
+mccabe==0.6.1
+    # via flake8
+mypy==0.931
+    # via -r ci-requirements.in
+mypy-extensions==0.4.3
+    # via mypy
+packaging==21.3
+    # via pytest
+pluggy==1.0.0
+    # via pytest
+py==1.11.0
+    # via pytest
+pycodestyle==2.8.0
+    # via flake8
+pyflakes==2.4.0
+    # via flake8
+pyparsing==3.0.7
+    # via packaging
+pytest==7.0.1
+    # via -r ci-requirements.in
+tomli==2.0.1
+    # via
+    #   mypy
+    #   pytest
+typing-extensions==4.1.1
+    # via mypy