Improve replication protocol adding events

[lvca]

The issue with multi-server events is our RAFT replication protocol: only modified pages are exchanged between servers. So if you update the record #10:100 on server A, its page will be sent to the other servers, but not the actual event "modified record 10:100". This is something we should add to the replication protocol.

Originally posted by @lvca in https://github.com/ArcadeData/arcadedb/discussions/149#discussioncomment-12700765