Add cluster to streaminfo/consumerinfo struct

[j13tw]

Add cluster information on ConsumerInfo && StreamInfo,
Follow the structure of nats CLI Tool within trace Mode.

• Jetstream Stream API Trace

nats str report --trace

{"type":"io.nats.jetstream.api.v1.stream_list_response","total":1,"offset":0,"limit":256,"streams":[{"config":{"name":"test","subjects":["test"],"retention":"limits","max_consumers":-1,"max_msgs":-1,"max_bytes":-1,"max_age":0,"max_msgs_per_subject":-1,"max_msg_size":-1,"discard":"old","storage":"file","num_replicas":3,"duplicate_window":120000000000,"sealed":false,"deny_delete":false,"deny_purge":false,"allow_rollup_hdrs":false},"created":"2022-06-24T11:04:21.564710722Z","state":{"messages":10,"bytes":531,"first_seq":1,"first_ts":"2022-06-24T11:04:36.593164161Z","last_seq":10,"last_ts":"2022-06-24T11:04:36.599477736Z","num_subjects":1,"consumer_count":1},"cluster":{"name":"nats-server-1","leader":"nats-server-4-0","replicas":[{"name":"nats-server-5-0","current":true,"active":472214464},{"name":"nats-server-6-0","current":true,"active":472212927}]}}]}

╭───────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────╮
│                                                           Stream Report                                                           │
├────────┬─────────┬───────────┬───────────┬──────────┬───────┬──────┬─────────┬────────────────────────────────────────────────────┤
│ Stream │ Storage │ Placement │ Consumers │ Messages │ Bytes │ Lost │ Deleted │ Replicas                                           │
├────────┼─────────┼───────────┼───────────┼──────────┼───────┼──────┼─────────┼────────────────────────────────────────────────────┤
│ test   │ File    │           │ 1         │ 10       │ 531 B │ 0    │ 0       │ nats-server-4-0*, nats-server-5-0, nats-server-6-0 │
╰────────┴─────────┴───────────┴───────────┴──────────┴───────┴──────┴─────────┴────────────────────────────────────────────────────╯

• Jetstream Consumer API Trace

nats con report <Stream_Name> --trace

{"type":"io.nats.jetstream.api.v1.consumer_info_response","stream_name":"test","name":"test","created":"2022-06-24T11:04:28.904421826Z","config":{"durable_name":"test","deliver_policy":"all","ack_policy":"explicit","ack_wait":30000000000,"max_deliver":-1,"replay_policy":"instant","max_waiting":512,"max_ack_pending":1000},"delivered":{"consumer_seq":1,"stream_seq":1,"last_active":"2022-06-24T11:04:41.465820627Z"},"ack_floor":{"consumer_seq":1,"stream_seq":1,"last_active":"2022-06-24T11:04:41.468118541Z"},"num_ack_pending":0,"num_redelivered":0,"num_waiting":0,"num_pending":9,"cluster":{"name":"nats-server-1","leader":"nats-server-4-0","replicas":[{"name":"nats-server-5-0","current":true,"active":416324845},{"name":"nats-server-6-0","current":true,"active":416451641}]}}

╭────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────╮
│                                                     Consumer report for test with 1 consumers                                                      │
├──────────┬──────┬────────────┬──────────┬─────────────┬─────────────┬─────────────┬───────────┬────────────────────────────────────────────────────┤
│ Consumer │ Mode │ Ack Policy │ Ack Wait │ Ack Pending │ Redelivered │ Unprocessed │ Ack Floor │ Cluster                                            │
├──────────┼──────┼────────────┼──────────┼─────────────┼─────────────┼─────────────┼───────────┼────────────────────────────────────────────────────┤
│ test     │ Pull │ Explicit   │ 30.00s   │ 0           │ 0           │ 9 / 90%     │ 1         │ nats-server-4-0*, nats-server-5-0, nats-server-6-0 │
╰──────────┴──────┴────────────┴──────────┴─────────────┴─────────────┴─────────────┴───────────┴────────────────────────────────────────────────────╯

[caspervonb]

Thanks for the pull request!

Two tiny notes:

• Looked up the schema and there are two more additional fields in peer info.
• A test case would be greatly appreciated (granted, bit trickier to setup when it involves a cluster so we might be a bit lenient in this case).

[caspervonb]

CI isn't passing but I'll take it from here, thank you very much!
Will merge today.

[Jarema]

tested on a local cluster.

LGTM.

Thanks for your contribution and effort @j13tw !