soLDraw - Solid LDraw parts

In https://www.printables.com/model/426277 I provided automatically converted LDraw.org parts. While they provide thousands of parts they are mostly designed for rendering and not for printing most of those parts are not manifold and thus may produce unexpected results when slicing.In an OpenSource effort at https://github.com/schiele/soLDraw I started a library of solid counterparts to LDraw parts that reflect the same shape but are remodeled to be manifold and thus can be correctly processed b