First part for the new tool.
Removed unneccessary assertion in AABB constructor
Initial commit convertPolylineToVerticalPolygon.

The tool was transfered from OGS-5 to OGS-6. It is useful only for layered meshes.
Using TCLAP for parsing command line args.
Using logog logging in convertPolylineToVerticalPolygon.
Experimenting with search length.
Added convertPolylineToVerticalPolygon to qt-sect.

Added convertPolylineToVerticalPolygon to qt-section to use xml functionality.
Generating the surface and write it as xml out.