SU2 compatibility

Created by: acrovato

As of SU2-6.1.0, the class CDriver has a new constructor:

CDriver(char* confFile,
unsigned short val_nZone,
unsigned short val_nDim,
bool val_periodic,
SU2_Comm MPICommunicator);

in which bool var_perodic has been added compared to the previous version.

Consequently, the current SU2 wrapper (pysu2) is no more compatible with new releases of SU2. The last version to be compatible is SU2-6.0.1