Plan for handling Connecticut's updated counties

[alykat]

Background, per AP:

Connecticut’s eight counties, which exist only as boundary lines with no county-level governments, are now being replaced with Connecticut’s nine planning regions for the purposes of county-level data reporting.

In Connecticut, as in the rest of New England, AP tabulates elections results at the township reporting unit level, and then the results are aggregated to the county level using the FIPS codes of counties or county equivalents. Instead of using Connecticut county FIPS codes, AP will now aggregate the data using the FIPS codes of the planning regions, which are the new "county equivalents" in Connecticut.

The township reporting unit names and IDs will remain the same; only the FIPS codes are changing.

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• [ ] Use townships instead? (see #8)
• [ ] Generate new county/township maps
• [ ] Any other county-ish data we're referencing (demographics, economic data, past electoral data) will have to be accounted for
  • [x] #50
  • [x] #51
  • [x] #53

[alykat]

superceded by this ticket: https://github.com/nprapps/elections24-general/issues/8