Feature: make SCF converges only if drho and dene is smaller than threshold

[WHUweiqingzhou]

Fix #5011

The List of Change

1. Before this PR, SCF converges for drho < scf_thr || dene < scf_ene_thr. After this PR, SCF converges for drho < scf_thr && dene < scf_ene_thr.
2. Default value scf_ene_thr = 1.0

[QuantumMisaka]

@WHUweiqingzhou Can we allow users to choose the AND and OR method linking two thresholds?

[WHUweiqingzhou]

@WHUweiqingzhou Can we allow users to choose the AND and OR method linking two thresholds?

In the cases where you prefer energy convergence, you can set a normal scf_ene_thr=1e-7, and set a large scf_thr=1e-4.

[WHUweiqingzhou]

Close this one, and see #5357