Checkpoint commit nixing parsing just formatted data w/`sciNoteSplits` or `parseInt` in favor of saving needed answers, fulfilling hopes from recent `ecvt2` and `fmtUncertainParts` work. Rename `addShifted` -> maybe better `addShiftPt`.  Identical test suite output.
Checkpoint commit nixing parsing just formatted data w/`sciNoteSplits` or
`parseInt` in favor of saving needed answers, fulfilling hopes from
recent `ecvt2` and `fmtUncertainParts` work. Rename `addShifted` -> maybe
better `addShiftPt`.  Identical test suite output.

c-blake/cligen