C++[NF] copy constructor and clone for GaussPrior
C++[NF] copy constructor and clone for GaussPrior

esc/Psignifit-3.x,esc/Psignifit-3.x,esc/Psignifit-3.x,esc/Psignifit-3.x,esc/Psignifit-3.x,esc/Psignifit-3.x