Node telemetry

[wezrule]

Closes #219

[wezrule]

Websockets and signature/node_id need to be accounted for

[zhyatt]

@wezrule @guilhermelawless Just want to draw attention to the questions outlined here as they may impact what documentation is included: nanocurrency/nano-node#2726 (comment)

Some of these are lower level than we typically include in our docs, but perhaps we should have an area for more advanced understanding of telemetry? Thoughts?

[guilhermelawless]

We have an open issue on our protocol repository: nanocurrency/protocol#9 . If we don't want the full information in nano-docs, we could use that one for the most technical details about the protocol, perhaps moving to the living whitepaper in the future?

[zhyatt]

Good call, I think some sharing of details between the two makes sense, although that protocol repository is quite constrained on the info that can be included, given it all exists in the Kaitai spec/image. If extra context is needed to be captured now outside that spec, perhaps we can put a new section in https://docs.nano.org/protocol-design/networking/ and then transfer to the living whitepaper later.

[guilhermelawless]

Suggested a few small corrections