Creates an incident_permission_set_resource

curl --request POST \
  --url https://api.rootly.com/v1/incident_permission_sets/{incident_permission_set_id}/resources \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/vnd.api+json' \
  --data '
{
  "data": {
    "attributes": {
      "incident_permission_set_id": "<string>",
      "private": true,
      "resource_id": "<string>",
      "resource_type": "<string>",
      "severity_params": {
        "fully_enabled": true,
        "create_enabled": false,
        "applies_to_unassigned": true,
        "severity_ids": [
          "<string>"
        ]
      }
    }
  }
}
'

{
  "data": {
    "id": "<string>",
    "attributes": {
      "incident_permission_set_id": "<string>",
      "created_at": "<string>",
      "updated_at": "<string>",
      "private": true,
      "resource_id": "<string>",
      "resource_type": "<string>"
    }
  },
  "included": [
    {
      "id": "<string>",
      "type": "<string>",
      "attributes": {},
      "relationships": {}
    }
  ]
}