update go and improve node state checks

[x100111010]

• update go
• handle non default ports:
  • checks if the address is routable using addressmanager.IsRoutable
  • does not explicitly filter out non-default ports in AddAddresses
  • -> nodes with the same IP but different ports are treated as different entries in the map

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• "Good": if it is not on a non-default port and if the last successful connection was within defaultStaleGoodTimeout
• "Stale": If the last connection attempt was more than defaultStaleGoodTimeout ago or more than defaultStaleBadTimeout
• "Expired": If it hasn’t been seen or had a successful connection in last pruneExpireTimeout

^Credits: @supertypo
really nice changes!

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• ignore addresses with port = 0

• log address for invalid name

• log the user agent and p2p version

• only accept peers as good if protocol version >= 6

  • V5 is being used in go-spectred
  • V6 and above is rusty-spectre and it will be V7 post sigma, so this is easier compared to checking the node version (using regex) from the user agent

• support for MinProtoVer: minprotocolversion

• support for MinUaVer: min node version

• avoid collecting peers for nodes below minimum protocol version

• properly identify dns seeder with name and version

• update dep and tidy