bug: check peer scoring

[erhant]

it may be the case that when most of the network is gathered around a specific region, outliers are not able to join potentially due to low peer scores (via bad latency)

this was observed because nodes that cant find any peers in US turn out to be working just fine when launched in EU instead. might revise our scoring methodology to combat this...

see also: https://github.com/waku-org/nwaku/blob/master/waku/waku_relay/protocol.nim

kudos to @vpavlin