embeddedDMFT parser and revisit DMFT metainfo

This issue is to extend the current DMFT and GreensFunctions metainfo (both in run and results) for parsing and normalizing w.r.t to the code eDMFT.

They have their own database that we can parse too into NOMAD-lab after the eDMFT parser is prepared.

• Add eDMFT parser.
  • Clean-up run.method.dmft metainfo.
  • Add results.method.dMFT.maxent_analytical_continuation boolean quantity.
• Add quantities to run.calculation.greens_functions_electronic for:
  • greens_function_freq and self_energy_freq (in real frequencies).
  • hybridization_function for both imaginary and real frequencies.
• - Im G(w) / pi is directly comparable with DOS -> parse into Dos.total and Dos.orbital_projected.
• Extract band_gap_electronic information from greens_function_freq.
• Parse DFT+DMFT workflow:
  • Wannier+DMFT workflow ( #1445 (closed)).
  • DMFT+MaxEnt workflow.
  • DFT+DMFT(+MaxEnt) workflow.