[python] fix CMakeLists.txt files

frackit/python/geometry/CMakeLists.txt

 install(FILES
+box.hh
+circle.hh
+cylinder.hh
+cylindersurface.hh
+direction.hh
+disk.hh
+ellipsearc.hh
+ellipse.hh
+ellipticalgeometry.hh
+geometry.hh
+hollowcylinder.hh
+line.hh
+plane.hh
 point.hh
+quadrilateral.hh
+registerdimensionproperties.hh
+segment.hh
+triangle.hh
 vector.hh
 DESTINATION ${CMAKE_INSTALL_INCLUDEDIR}/frackit/python/geometry)

frackit/python/sampling/CMakeLists.txt

 install(FILES
 boxpointsampler.hh
 cylinderpointsampler.hh
+pointsampler.hh
 DESTINATION ${CMAKE_INSTALL_INCLUDEDIR}/frackit/python/sampling)