authority-discovery: Add log for debugging DHT authority records (#3668)
This PR adds a debug log for displaying all the public addresses that
will later be advertised in the DHT record of the authority. The
Authority DHT record will contain the address ++ `/p2p/peerID` (if not
already present).
This log enables us to check if different nodes will advertise in the
DHT record of the authority the same IP address, however with different
peer IDs.
Signed-off-by: Alexandru Vasile <[email protected]>