janacontrol display of object addresses for non-JObject, non-TObject types

[faustus123]

Currently, the janacontrol plugin will only send addresses for classes that it knows how to summarize (JObject and TObject). In cases of other types, it should at least provide the address and a summary with something like "<N/A>".

We should also look into digging the fields out of PODIO data types, (though that may need to be put in as a different issue).