2.2.0

• Added DefectsParser class for parsing defect calculations:
  • Uses multiprocessing and shared bulk data to massively speed up parsing of many defect supercell
    calcs at once (e.g. from 17 min to < 3 mins for 54 defects in CdTe).
  • Automatically checks INCAR, KPOINTS, POTCAR and charge correction compatibility between
    all calculations, and warns the user if any are likely to affect formation energies.
• Make csv input to CompetingPhasesAnalyzer more flexible, along with other code and docstrings updates.
• Format point group symbol in formation energy plots.
• Refactor elt/elt_refs to el/el_refs by @adair-nicolson
• Charge states can now be automatically determined even when POTCARs are not setup by the user.

Updates reflected in the doped parsing tutorial.