o pkg/obcs: split header file "OBCS.h" into 4 separated files. o ctrl, cost, grdchk & autodiff pkgs: more standard options files
o pkg/obcs: split header file "OBCS.h" into 4 separated files.
o ctrl, cost, grdchk & autodiff pkgs: more standard options files

altMITgcm/MITgcm66h,altMITgcm/MITgcm66h,altMITgcm/MITgcm66h,altMITgcm/MITgcm66h,altMITgcm/MITgcm66h,altMITgcm/MITgcm66h,altMITgcm/MITgcm66h,altMITgcm/MITgcm66h