new USER-MOP package submitted

src/USER-MOP/README

src/USER-MOP/compute_mop.cpp

src/USER-MOP/compute_mop.example

src/USER-MOP/compute_mop.h

src/USER-MOP/compute_mop.txt

src/USER-MOP/compute_mop_profile.cpp

src/USER-MOP/compute_mop_profile.h

src/USER-MOP/compute_mop_profile.txt