File renames, build script and cmake updates

src/ifcgeom/kernels/opencascade/face_definition.cpp

@@ -0,0 +1,22 @@
+#include "face_definition.h"
+
+#include <TopoDS.hxx>
+#include <Geom_Line.hxx>
+#include <BRep_Tool.hxx>
+#include <TopoDS_Iterator.hxx>
+
+/* Returns whether wire conforms to a polyhedron, i.e. only edges with linear curves*/
+bool IfcGeom::util::is_polyhedron(const TopoDS_Wire & wire) {
+	double a, b;
+	TopLoc_Location l;
+
+	TopoDS_Iterator it(wire, false, false);
+	for (; it.More(); it.Next()) {
+		auto crv = BRep_Tool::Curve(TopoDS::Edge(it.Value()), l, a, b);
+		if (!crv || crv->DynamicType() != STANDARD_TYPE(Geom_Line)) {
+			return false;
+		}
+	}
+
+	return true;
+}