Add redblobhex, from https://www.redblobgames.com/grids/hexagons/codegen/output/lib.py
Add redblobhex, from https://www.redblobgames.com/grids/hexagons/codegen/output/lib.py

jhanley634/testing-tools,jhanley634/testing-tools,jhanley634/testing-tools,jhanley634/testing-tools,jhanley634/testing-tools,jhanley634/testing-tools,jhanley634/testing-tools