Add support for "full expansion". Just apply H¦psi> once to try to get unstuck.
Add support for "full expansion". Just apply H¦psi> once to try to get unstuck.


Former-commit-id: 78632a99cfcf299bfe4c7d565b8923d242f85cff
DavidAce/DMRG,DavidAce/DMRG,DavidAce/DMRG,DavidAce/DMRG