Support of JSONPath

[Seddryck]

It should be possible to specify a JSONPath to have something similar that the FLOWR xml query

<result-set>
  <json-source>
    <file>..\Csv\PurchaseOrders.json</file>
    <json-path>
      <from>$.PurchaseOrders[*].Items[*]</from>
      <select>!!.PurchaseOrderNumber</select>
      <select>$.PartNumber</select>
    </json-path>
  </json-source>
</result-set>

Tradiotnal JsonPath is supported (from NewtonSoft.Json.Linq) with the addition of the symbol ! equivalent to the .. in XPath (jump to the parent). This flavored feature is only supported at the beginning of a JsonExpression and in the select expressions

it's also supporting a remote url:

<json-source>
  <url>http://www.url.com/foo/bar.json</url>
   ...
</json-source>

[Seddryck]

Beta available at https://ci.appveyor.com/project/Seddryck/nbi/builds/28578027/artifacts or 1.22.0-beta0015.