OpenSCAD revolve: powerful and fast module for screws and more

# This library has been superseded by revolve2

## Check it out at this link: https://www.thingiverse.com/thing:3215997

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Introducing revolve
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This OpenSCAD module allows for rotational extrusion of generic user-defined profiles,
introducing a pitch in the longitudinal direction, the most common application being
the creation of screws.
The solid is built as a single polyhedron by transforming the 2D points found in the
profile array. No boolean operat