Add support for counting files and file size to quick_overview.py
Add support for counting files and file size to quick_overview.py


Former-commit-id: d504525f335bbadf30dc5234d6c17bae80fac3f1
DavidAce/DMRG,DavidAce/DMRG,DavidAce/DMRG,DavidAce/DMRG