wip/py-solpy 0.2.3 NetBSD

Solpy is a python library to model solar system power performance similar to PVWatts or NREL's System Advisor Model (SAM). I initially started writing this while working in Bangladesh as fairly crude calculator to go from a fisheye panorama to a csv of vectors for shading calculations, however there were several pieces that were added to make it a bit more useful for both analyis and design. Daniel Thomas did work adding the Tang evacuated glass tube model. Pyephem was added for solar positioning. There is also a simple module for reading TMY3 data. This tool is rudimentary, but functional. This is primarily a research and analysis tool and there is no guarantee on the calculations