[PythonCAD] Latest repo code

[Art Haas]

Hi.

The repo now contains code allowing you to adjust more of the various
values in the primary and secondary DimStrings in Dimension entities.
The ability to change the color is missing right now, and I think I'm
going to push fixing this until the next release as I need to tackle
adding a print dialog box.

A bug where trying to draw a rectangle by entering the points on the
command line has also been fixed.

Art Haas
-- 
Man once surrendering his reason, has no remaining guard against absurdities
the most monstrous, and like a ship without rudder, is the sport of every wind.

-Thomas Jefferson to James Smith, 1822