[numerics] use numerics_printf rather than printf
[numerics] use numerics_printf rather than printf

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