copied in from KShell Subversion repository:
https://kshell.sourcerepo.com/kshell/kshell/x3dom_cad/trunk/scripts/CADGeometry.js
at rev 3594
Added as a test of the QuadSet node (in CADGeometry component) implementation
Tests which demonstrate the product structure nodes (CADLayer, CADAssembly, CADPart, CADFace nodes
of CADGeometry component, and the indexedQuadSet node of that component
modified the meta tags to improve description
Merge pull request #184 from vincentmarchetti/cad_component

Cad component