Have to add NWChem to imports in regressions.py
NWChem: fix gbasis parsing (unit test succeeds)
NWChem: add some comments to parser sections
NWChem: parse coordinates at beginning of each geometry optimization step
NWChem: use symmetry for SP and GeoOpt unit tests
NWChem: fix for moenergies when MO wymmetries are printed
NWChem: fix parsing of homos for restricted calcs
NWChem: fix SPun test execution
NWChem: parse mosyms for restricted calcs
NWChem: parse Mulliken charges from population analysis (needed for DFT and has more precision)
NWChem: add more unit tests
NWChem: some quick fixes to get MP2 and CCSD(T) unit tests parsing