[feature request] Add machine readable document linking set names to UTF

[wldevries]

For use in non-web use cases it would be great to have an official translation sheet from the set short code to the Unicode character. It could look something like this:

{
  "znr": 59747,
  "iko": 59746,
   ...
}

[andrewgioia]

Moving this (and all older v4 issues) to discussions!