Ability to load JSON records held in a file with a single top level key that is a list of objects

It's very common for JSON to look like this:

{
  "Version": "5.5.52.6",
  "List": [
    {
      "Description": "Nonpartisan",
      "Id": 1,
      "ExternalId": ""
    },
    {
      "Description": "Undeclared",
      "Id": 2,
      "ExternalId": ""
    }
  ]
}

This example taken from the records downloaded from https://www.elections.alaska.gov/election-results/e/

Right now you can't import this into sqlite-utils - you need to run it through jq .List first.

But since this is so common, it would be neat if sqlite-utils could have a rule of thumb that says "if it's an object, but it has a single key that is is a list of objects, use that instead".

No file or test is named in the issue. Start by locating the sqlite-utils JSON import entry point and its existing tests; use the Alaska-shaped example to define the single-key list-of-objects case, then verify that regular JSON objects and other imports still behave as before.