* Rename zt_packet_incoming -> zt_packet
Also consolidate zt_peer_packets into a single metric with tx and rx labels. Same for ztc_tcp_data and ztc_udp_data
* Further collapse tcp & udp into metric labels for zt_data
* Fix zt_data metric description
* zt_peer_packets description fix
* Consolidate incoming/outgoing network packets to a single metric
* zt_incoming_packet_error -> zt_packet_error
* Disable peer metrics for central controllers
Can change in the future if needed, but given the traffic our controllers serve, that's going to be a *lot* of data
* Disable peer metrics for controllers pt 2
* Adding peer metrics
still need to be wired up for use
* per peer packet metrics
* Fix crash from bad instantiation of histogram
* separate alive & dead path counts
* Add peer metric update block
* add peer latency values in doPingAndKeepalive
* prevent deadlock
* peer latency histogram actually works now
* cleanup
* capture counts of packets to specific peers
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Co-authored-by: Joseph Henry <joseph.henry@zerotier.com>
Adam Ierymenko
Joseph Henry
Grant Limberg
Brenton Bostick
Shawn