Adding draw_bareme and draw_taux as SurveySimulation methods
Adding draw_bareme and draw_taux as SurveySimulation methods

sgmap/openfisca-core,benjello/openfisca-core,adrienpacifico/openfisca-core,openfisca/openfisca-core,benjello/openfisca-core,openfisca/openfisca-core