Add queue_data sub-object to LedgerResult

[nkramer44]

Currently in LedgerResult, there is no sub object modeling the queue_data field that gets returned in responses. We should add this field if anyone requests it

[Relect]

"if anyone requests it" I'm ask this

I need to parse data from ledger_closed Is it possible to somehow use this library to decrypt the "data": hash if "binary": true or how to get this data from Json if "binary": false ?