Result key should support jq based fields

Currently, the scan JSON file contains the result_key which is based on a single key that calls the AWS service function and returns "ResponseMetadata", supporting JQ-based fields in the result_key option to get more granular and shortened results.

Continue to support key based filtering from response

  {
    "function": "list_clusters",
    "service": "emr",
    "parameters": {
      "ClusterStates": [
            "WAITING"
          ]
        },
    "result_key": "Clusters"
}
]

Also, support JQ based filter query

  {
    "function": "list_clusters",
    "service": "emr",
    "parameters": {
      "ClusterStates": [
            "WAITING"
          ]
        },
    "result_key": ".Clusters[]|.Id, .Name"
}
]

aws-samples / aws-auto-inventory

Result key should support jq based fields #51