Create a reader of skimage.measure.regionprops output

[vreuter]

Right now, we immediately convert the mapping that's returned by the regionprops function from skimage to a pandas.DataFrame, and then write that to CSV. We should have a utility that parses the more raw, JSON-like mapping data and/or the CSV table data. This would make the output of this valuable function call then available for use in Scala code equally to in Python code.