Metrics

The goal of metrics is to provide some basic statistics about the system like number of Whisper envelopes, number of connected peers etc.

More about metrics can be found in https://github.com/status-im/status-go/blob/develop/metrics/README.md

TODO: add to README information how to obtain collected metrics.

Scalability Whisper tests

TBD: https://github.com/status-im/status-go/pull/609

Disruptive tests

TBD: https://github.com/status-im/status-go/pull/646