Geopandas: Implement `is_ccw`

[yunchipang]

parent #2230

[petern48]

Turns out this isn't straightforward, since there's no direct function equivalent. See the discussion in the above PR.

A few ideas I have that I don't quite have time to try at the moment:

1. somehow leverage ST_DumpPoints
2. The below hacky logic. idk if it would work properly. We'd also have to wrap it in a case statement to make sure that the below only applies to linestrings and we return False for all other cases (including polygon).

SELECT ST_MakePolygon(
    ST_AddPoint(
        column,
        ST_StartPoint(column)
    )
)