Move block announcement protocol config out of Protocol (#12441)

* Move Role(s) to `sc-network-common`

* Introduce `NotificationHandshake` type

* Move block announce protocol config creation to `ChainSync`

* Include block announcement into `notification_protocols`

* Apply review comments

* Remove unneeded include

* Add missing include

* Apply review comments

substrate/client/finality-grandpa/src/communication/gossip.rs

@@ -90,7 +90,7 @@ use parity_scale_codec::{Decode, Encode};
 use prometheus_endpoint::{register, CounterVec, Opts, PrometheusError, Registry, U64};
 use rand::seq::SliceRandom;
 use sc_network::{PeerId, ReputationChange};
-use sc_network_common::protocol::event::ObservedRole;
+use sc_network_common::protocol::role::ObservedRole;
 use sc_network_gossip::{MessageIntent, ValidatorContext};
 use sc_telemetry::{telemetry, TelemetryHandle, CONSENSUS_DEBUG};
 use sc_utils::mpsc::{tracing_unbounded, TracingUnboundedReceiver, TracingUnboundedSender};

substrate/client/finality-grandpa/src/communication/tests.rs

@@ -28,10 +28,7 @@ use parity_scale_codec::Encode;
 use sc_network::{config::Role, Multiaddr, PeerId, ReputationChange};
 use sc_network_common::{
 	config::MultiaddrWithPeerId,
-	protocol::{
-		event::{Event as NetworkEvent, ObservedRole},
-		ProtocolName,
-	},
+	protocol::{event::Event as NetworkEvent, role::ObservedRole, ProtocolName},
 	service::{
 		NetworkBlock, NetworkEventStream, NetworkNotification, NetworkPeers,
 		NetworkSyncForkRequest, NotificationSender, NotificationSenderError,