wip/py-quantities 0.16.0 NetBSD

Quantities is designed to handle arithmetic and conversions of physical quantities, which have a magnitude, dimensionality specified by various units, and possibly an uncertainty. See the tutorial_ for examples. Quantities builds on the popular numpy library and is designed to work with numpy ufuncs, many of which are already supported. Quantities is actively developed, and while the current features and API are stable, test coverage is incomplete so the package is not suggested for mission-critical applications