Creates polygonal curves from an edge group where point order of the curves will be in the same direction as the point order of each edge selection and closed edge selections will be created as closed polygons unless specified otherwise.
Some tricks about serializing edges and creating them in VEX.
https://www.dropbox.com/s/17objbi3zg2r94q/PolyCurvesFromEdges_SOP_Animatrix.otl?dl=1