[data,refactor][xs]: normalize spelling of constituents names to be more inline with S&P sourc data.

- e.g. remove '.' in Co. and Inc., remove Inc entirely, fix up other names.
- fix sector names to S&P standard ones
[scripts,data][m]: update to new S&P source for constituents data.

- tried to fix most of the in place changes in data in previous commit but may not have got all so much of data changes will be spurious (i.e. not real updates)
[data][s]: update financials.