Original DZ_JSON 1.0
This 1.0 release was created to support the conversion of SDO_GEOMETRY into GeoJSON based upon the 2008 specification:
http://geojson.org/geojson-spec.html
With the 2016 release of RFC 7946 the standard has changed slightly, most notably with the removal of support for the CRS object.
https://tools.ietf.org/html/rfc7946
Future versions of DZ_JSON will thus not support any CS other than WGS84. This 1.0 release is provided if for some reason you do need that functionality.