Update to JSONPath Plus

[DanielHabenicht]

Some user reports suggest that the currently used JSONPath library has some drawbacks regarding user friendliness.

e.g. and evaluation on this JSON:

{
   "lastData"  : {
    "tempf": "naist street"
  }
}

With the query: $.[lastData].tempf returns the value intended.
Whereas with the current library an error occurs: Expecting 'STAR', 'IDENTIFIER', 'SCRIPT_EXPRESSION', 'INTEGER', 'END', got '['

JsonPath Plus has some other benefits like extended query syntax too.

Feel free to leave a reaction (👍 👎 ) if it should be used instead.

If not updated with this library the documentation should reference an interactive playground identical to the used package.