Convert configs/localization to JSON

[phogue]

We currently use XML for configs and support XML and JSON for commands going back and forth over the command server. Every serialization issue so far has been with XML.

If we are to support XML it would require lots of messy tags through out the models. This has already occurred in some models, but when dealing with serialization of interfaces it would mean I would now need to all but implement the serialization myself.

The easier option is to ditch XML and just support JSON. This would mean one serialization type to test, it would be my preferred transport type and a pretty killer library that will handle the serialization for us.

The events disk logging, while optional, is also done in XML. Using JSON will cut a small test section I did by two thirds.

We can use the newtonsoft json library to convert the existing xml config files for BF4 to JSON.