failure_detector: Print versions for gossip states in gossipinfo
failure_detector: Print versions for gossip states in gossipinfo

Backport: CASSANDRA-10330

ae4cd69 Print versions for gossip states in gossipinfo

For instance, the version for each state, which can be useful for
diagnosing the reason for any missing states. Also instead of just
omitting the TOKENS state, let's indicate whether the state was actually
present or not.

avikivity/scylla,raphaelsc/scylla,duarten/scylla,scylladb/scylla,kjniemi/scylla,raphaelsc/scylla,kjniemi/scylla,duarten/scylla,avikivity/scylla,raphaelsc/scylla,avikivity/scylla,scylladb/scylla,duarten/scylla,kjniemi/scylla,scylladb/scylla,scylladb/scylla