This is a research spike to understand the effort needed to support Prometheus-style histograms in pktvisor (https://prometheus.io/docs/concepts/metric_types/#histogram).

This effort would be a preliminary step to supporting OpenTelemetry exponential histograms(https://github.com/open-telemetry/opentelemetry-specification/blob/main/specification/metrics/sdk.md#exponential-bucket-histogram-aggregation)