Import py27-geographiclib-1.31 as wip/py-geographiclib.

This is a python implementation of the geodesic routines from GeographicLib.
This contains implementations of the classes

    GeographicLib::Math
    GeographicLib::Accumulator
    GeographicLib::Geodesic
    GeographicLib::GeodesicLine
    GeographicLib::PolygonArea