Create Calibration.py

Derived from the other half of segmentize.py, this script reads a data file of 'Points' and outputs a file of calibration results.

A point is a set of three, comma separated, numbers which are the distance, in millimeters, between the hinge bolts for each of the arms when the tip of the extruder is just barely touching the bed.
The file must contain at least 6 points, and each point must be on a separate line.
Blank or comment lines will be ignored. Comment lines have either '#' or ';' as the first character.

By default, the output will be written to Calibration.GUS.