connector json config snippet for plugin support

config snippet for connector.json

{
  "continueOnError": true,
  "verbosity": 2,
  "namespaces": {
    /*  Other collection info ... */
    "meteor_namespace.runData": {
      "plugins": [
        {
          "pluginName": "UpdateElasticsearchIndex",
          "info": {
            "index": "meteor_namespace.resources",
            "query": {
              "key":  ["_id"],
              "xmap": {
                "_id": "/resourceId"
              }
            },
            "update": {
              "field": "additional_properties",
              "key":   "_id",
              "value": {
                "type": "dict",
                "keys": ["_id", "name", "value"]
              },
              "xmap": {
                "_id":   "/propertyId",
                "name":  "/propertyName",
                "value": "/data/0/value"
              }
            }
          }
        }
      ],

      "includeFields": [
        "_id",
        "resourceId",
        "propertyId",
        "propertyName",
        "data",
        "immutable"
      ]
     }
  },

  "docManagers": [{ /*  Doc manager info ... */ }],
  "plugins": [
     {
       "pluginName": "UpdateElasticsearchIndex",
       "moduleName": "mongo_connector.plugins.update_elasticsearch_index"
     }
  ]
}