move diagnostics_fill_ptracers to ptracers_fill_diagnostics from  pkg/diagnostics to pkg/ptracers
move diagnostics_fill_ptracers to ptracers_fill_diagnostics from
 pkg/diagnostics to pkg/ptracers

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