Feature Request: WAN port statistics

We can see some basic statistics on the client page for each client, albeit flagged as inaccurate because of hardware acceleration.

Can we get statistics on the WAN port? For example, chart of up/down speed over time, total consumption since last reset, where failover is in place failover stats, etc etc.

This request will be collected to evaluate.

The basic function is in the Luci -> Static -> Realtime Graphs and Luci -> Interface