Seven Segment Digits in OpenScad

A long time back, when I was first learning to code in Windows, I rand the Charles Petzold digital clock application as a sample.

Since then, I've done everything with that clock from rendering in OpenGL to high resolution timers.

This thing takes the seven segment digital display and renders it in OpenScad.

It's pretty straight forward. There are three routines.
DisplayDigit(number, height) - Will display a single digit, centered at the origin.

DisplayDigits(numbers, count, height