DDF for IKEA TRADFRI SHORTCUT button

[ebaauw]

New DDF in line with DDFs for other IKEA controllers. The shortcut button doesn't support group bindings.

{
  "config": {
    "alert": null,
    "battery": 60,
    "on": true,
    "reachable": false
  },
  "ep": 1,
  "etag": "9ae0c898037a49d53e10fffa3311dd48",
  "lastannounced": null,
  "lastseen": "2023-09-16T09:58Z",
  "manufacturername": "IKEA of Sweden",
  "mode": 1,
  "modelid": "TRADFRI SHORTCUT Button",
  "name": "Switch 121",
  "productid": "E1812",
  "state": {
    "buttonevent": 1004,
    "lastupdated": "2023-09-16T09:56:24.226"
  },
  "swversion": "2.3.080",
  "type": "ZHASwitch",
  "uniqueid": "68:0a:e2:ff:fe:34:91:ec-01-1000"
}

This PR was part of #7218.