JSON utility classes

The following JSON utility classes provided in the "util" extension package can be used to manipulate JSON data in memory:

• util.JSON implements basic JSON to/from FGL types conversion.
• util.JSONObject implements detail JSON Object control.
• util.JSONArray implements detail JSON Array control.

The following JSON utility classes provided in the "json" extension package can be used for streaming JSON data, especially with Genero Web Services:

• json.Serializer implements methods to serialize BDL variable to/from JSON objects.
• json.JSONWriter provides an interface that writes data in a JSON format to an output source.
• json.JSONReader provides an interface that reads data in a JSON format from an input source.