[mechanics] forget to register 2D shapes and classes in swig/python
[mechanics] forget to register 2D shapes and classes in swig/python

siconos/siconos,siconos/siconos,radarsat1/siconos,siconos/siconos,radarsat1/siconos,siconos/siconos,radarsat1/siconos,radarsat1/siconos,radarsat1/siconos