No update: just updated inputFILE to do some calculations for Stark-Ladder
UPDATED code: small revision, updated with improvements from upm_mixgf_dmft branch. Tested against previous results successfull. Starting point for branching to nomix_devel_hf
Update: using update_WF method #3: direct inversion of the Keldysh GF.
UPDATE: added more bath type: pseudo-gap and gapped bath. Tests running.