addPiles for makeScene1axis

[cdeline]

At the moment addPiles is a function in the SceneObj. It works for fixed-tilt systems. But a top-level function in RadianceObj is needed to loop through entries in TrackerDict to addPiles to each scene. (or users can do this on their own...)

for key in trackerdict: trackerdict[key]['scenes'][sceneNum].addPiles()

This may or may not be included in v0.5