* Update connected peers' topics on NodeEvent
After a peer connects they send us the list of the topics they're subscribed to. This causes a NodeEvent to be emitted. This PR makes sure we update the subscription info we have on the newly connected peer.
* Formatting
* Update protocols/floodsub/src/layer.rs
Co-Authored-By: dvdplm <dvdplm@gmail.com>
* whiespace
* Move lib.rs to protocol.rs
* Rewrite floodsub for ProtocolsHandler
* Add a FloodsubBehaviour
* Fix closing floodsub after a message
* Address concern
* Make it conform to the protocol
* Make it really conformant
* Address concerns
