NOTE: From now on Boost is required in order to compile IfcOpenShell

====================================================================

- Use boost::optional for optional IFC arguments
- Use boost::uuid for the creation of GlobalIds
- New IfcGeomObjects setting to force alignment of TopoDS_Face normal to CCW orientation
- Removed static Ifc class, renamed to non-static IfcFile. IfcFile renamed to IfcSpfStream
- Introduced Logger class
- Introduced EntityBuffer class that keeps track of all writable entities created to add them all in once to the IfcFile class

src/ifcwrap/Interface.h

@@ -24,6 +24,8 @@ namespace IfcGeomObjects {
 	const int CONVERT_BACK_UNITS = 3;
 	const int USE_BREP_DATA = 4;
 	const int SEW_SHELLS = 5;
+	const int FASTER_BOOLEANS = 6;
+	const int FORCE_CCW_FACE_ORIENTATION = 7;
 
 	class IfcMesh {
 	public: