Add basis sets

Extend current basis set extraction to be more modular and semantic. Use the LAPW family as a test case for the new structure.

  • Changes at the metainfo level
    • Make BasisSet self-referential with a repeatable subsection
    • Move plane wave description out of cell_dependent
    • Add LAPW as a combination of the (semi-)core states + plane waves
    • Update results section + GUI with new precision section
  • Update parsers
    • exciting
    • fleur
    • wien2k
    • elk
    • abacus
    • abinit
    • ams
    • atk
    • bigdft
    • castep
    • cp2k
    • cpmd
    • crystal
    • dmol3
    • fhiaiams
    • gamess
    • gaussian
    • gpaw
    • nwchem
    • octopus
    • openmx
    • orca
    • psi4
    • qball
    • quantumespresso
    • siesta
    • turbomole
    • vasp
  • Add native precision tiers
    • VASP
    • FHIaims
    • Wien2k: precision is set from the command line, not logged
    • Fleur: has online suggestions, not hard-coded key
    • orca ?
    • castep ?
    • abinit: require an example
    • openmx: has online suggestions, not hard-coded key

The codes with non-hardcoded tiers, will have to be recognized based on their settings.

Edited by Nathan Daelman