aztek code in 2x3 block segments

Redraw the image from commit v1.0-30-g378bf4526a (2015-09-05)
using 27 distinct 2x3 block segments from Unicode v13.0,
replacing 14 2x2 drawing characters still covered in an earlier diagram.

Results in a square aspect ratio assuming tall fonts.

Larger micro QR code does not offer more distinct characters.