Added pre-commit config and ran trailing-whitespace, isort and check-yaml hools#298

JamesParrott merged 3 commits intoGeospatialPython:masterGeospatialPython/pyshp:masterfrom

JamesParrott:Synced_with_PyShpJamesParrott/IronPyShp:Synced_with_PyShpCopy head branch name to clipboard