Anton Evangelatov
dcca613a0b
swarm: initial instrumentation (#15969)
* swarm: initial instrumentation with go-metrics
* swarm: initialise metrics collection and add ResettingTimer to HTTP requests
* swarm: update metrics flags names. remove redundant Timer.
* swarm: rename method for periodically updating gauges
* swarm: finalise metrics after feedback
* swarm/network: always init kad metrics containers
* swarm/network: off-by-one index in metrics containers
* swarm, metrics: resolved conflicts