NWChem: v6.0 with fixed-width mass-weighted Hessian

Before a fix,
cclib/cclib@110292d
gives

    $ ccget --list NWChem/NWChem6.0/dvb_ir_hf.out
    Attempting to read NWChem/NWChem6.0/dvb_ir_hf.out
    [NWChem NWChem/NWChem6.0/dvb_ir_hf.out ERROR] Encountered error when parsing.
    [NWChem NWChem/NWChem6.0/dvb_ir_hf.out ERROR] Last line read:     3   3.97190D-14-2.57643D-15 1.69348D+01

    Traceback (most recent call last):
      File "/usr/bin/ccget", line 8, in <module>
        sys.exit(ccget())
                 ^^^^^^^
      File "/usr/lib/python3.12/site-packages/cclib/scripts/ccget.py", line 182, in ccget
        data = ccread(filename, **kwargs)
               ^^^^^^^^^^^^^^^^^^^^^^^^^^
      File "/usr/lib/python3.12/site-packages/cclib/io/ccio.py", line 185, in ccread
        return log.parse()
               ^^^^^^^^^^^
      File "/usr/lib/python3.12/site-packages/cclib/parser/logfileparser.py", line 156, in parse
        self.extract(self.inputfile, line)
      File "/usr/lib/python3.12/site-packages/cclib/parser/nwchemparser.py", line 1158, in extract
        vals = [utils.float(x) for x in tokens[1:]]
                ^^^^^^^^^^^^^^
      File "/usr/lib/python3.12/site-packages/cclib/parser/utils.py", line 76, in float
        return _BUILTIN_FLOAT(number.replace("D", "E"))
               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
    ValueError: could not convert string to float: '3.97190E-14-2.57643E-15'

Author: berquist