added python package template
deleted extra files
first real commit
added spectrum object and code to read attenuation
added atmo density func
bug fixes
added methods to calc atm transmission
added optics effective area
more updates
added pycharm to gitignore
fixed some issues with config added script dir
adding documentation building
first cut at documentation configured
added reqs file for building docs
moved reqs
fixed name
doc fix
removed doc exclude patterns
doc fix
added sas code in