Fixed bug. If info==19 (steady state routine returns check=1) info(2) is NaN,...

Fixed bug. If info==19 (steady state routine returns check=1) info(2) is NaN, so that it is not possible to define an endogenous penalty. In this case we just add one to objective_function_penalty_base.
(cherry picked from commit d2912b264c326b3f349984b605787045b028b992)