Fix parsing of 'Shape Data' for NURBS.
Fix parsing of 'Shape Data' for NURBS.

Signed-off-by: Tibby Lickle <29477b281bebc2eb856ca27dc3063e4f83aa46cf@gmail.com>

sdteffen/libvisio,sdteffen/libvisio,LibreOffice/libvisio,LibreOffice/libvisio,sdteffen/libvisio,LibreOffice/libvisio,sdteffen/libvisio