iota.get_node_info().unwrap expects only IRI nodes.

[l3wi]

get_node_info() expect the node to return a set of fields related to the Java Runtime, jre*, however node software such as Hornet doesn't return these fields as it uses Go.

I'm a bit of a Rust noob, so forgive the obvious solution I'm missing, but would it be best to drop these fields entirely as node software moving forward such as Bee and Hornet wont have these included.

thread 'main' panicked at 'called `Result::unwrap()` on an `Err` value: Error(Json(Error("missing field `jreAvailableProcessors`", line: 1, column: 655)))', /...../iota-client-0.3.0/client.rs:261:48
note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace