Add possibility not only to return a key-value array, but an array of objects with each key and its value as values

[taris]

I am currently parsing url-queries that result into the known key-value-objects:

Parsed: ?ab=hello&cd=world&ef=123

{
   "ab": "hello",
   "cd": "world",
   "ef": "123"
}

As an additional feature, i suggest to provide a flag, which lets "kv" return an array of objects like:

[
  {
    "key": "ab",
    "value": "hello"
  },
  {
    "key": "cd",
    "value": "world"
  },
  {
    "key": "ef",
    "value": "123"
  },
]

That way it would be possible to write elasticsearch queries for nested types.