Faster norm check when all sites are tagged as normalized
Faster norm check when all sites are tagged as normalized


Former-commit-id: 48c56e1a5f3253447a1cee06ab893845e33746c6
DavidAce/DMRG,DavidAce/DMRG,DavidAce/DMRG,DavidAce/DMRG