Add photonlibpy (#1040)

* Added a pure-python implementation of photonlib, named photonlibpy and hosted on pypi

---------

Co-authored-by: Matt <matthew.morley.ca@gmail.com>

photon-lib/py/buildAndTest.bat

@@ -0,0 +1,14 @@
+:: Uninstall if it already was installed
+pip uninstall -y photonlibpy
+
+:: Build wheel
+python setup.py bdist_wheel
+
+:: Install whatever wheel was made
+for %%f in (dist/*.whl) do (
+    echo installing dist/%%f
+    pip install --no-cache-dir dist/%%f
+)
+
+:: Run the test suite
+pytest