Basic computable JSON: Date, Double, Long - Assumes niem/xml; .Net console app updates

There is also some code for parsing out namespaces and doing our own JSON with namespaces to XML conversion.
The namespace feature is now slated for 5.0 - so there is a stub function for this feature but it's just calling the prior method of json to XML ( xotree.writeXML(json) ).

Need to improve this so it works for JSON posted, and doesn't assume niem/xml.
Need to add more data types, like Boolean and other xml primitive types.