Fit text to arbitrary surface in OpenSCAD

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This uses my Hershey fonts and function evaluation libraries to provide a module that fits text to an arbitrary surface with any degree of distortion, such as uv mapping. Check out the demo code in maphershey.scad. To use this in production, download the latest Hershey and eval libraries from their own pages instead of relying on the ones bundled in the mapshershey-standalone.scad file. Usage: use <maphershey.scad>; mapHershey(text,f="[u,v,0]",font="timesr",halign="left",valign="baseline",size=1) { stylusObject } where 'stylusObject' is whatever object you want to draw the letters with (e.g., a small sphere or a cube or a cylinder). The z-axis of the 'stylusObject' will be facing outward when the text is rendered.