Display wing and fuselage lofts not the lofts of the indivudial segments in TiglViewer
Display wing and fuselage lofts not the lofts of the indivudial segments in TiglViewer

Currently, the segment lofts do not coincide with the wing (resp. fuselage) lofts, since the segments get lofted with locally interpolated guide curves, while the fuselage and wing get lofted with the globally interpolated guide curves

addresses #392

DLR-SC/tigl,DLR-SC/tigl,DLR-SC/tigl,DLR-SC/tigl,DLR-SC/tigl,DLR-SC/tigl