Copied gossip test and replaced ipv4 references with ipv6.

Signed-off-by: snoj <josh@snoj.us>
fixed  gosipeeSocket error
Fix: argument order in ipv6 gossip tests.

Signed-off-by: snoj <josh@snoj.us>
fix: test ipv4 and ipv6 in parallel.

Signed-off-by: snoj <josh@snoj.us>
fix: json-over-tcp replacement of msgpack