Remove network lock (#840)

* Initial work on removing libp2p lock

* Removes lock from libp2p service

* Completed network lock removal

* Correct network termination future

* Correct fmt issues

* Remove Drop implementation for network service

* Address reviewers suggestions

* Fix dht persistence test (#844)

* Fix persistence test

* Block until dht is persisted

* Fix libp2p test

* Correct test ordering check

* Remove expensive tests from debug testing

Co-authored-by: Pawan Dhananjay <pawandhananjay@gmail.com>

beacon_node/eth2-libp2p/src/lib.rs

@@ -9,6 +9,7 @@ pub mod behaviour;
 mod config;
 mod discovery;
 pub mod error;
+mod globals;
 mod metrics;
 pub mod rpc;
 mod service;
@@ -16,6 +17,7 @@ mod topics;
 
 pub use behaviour::PubsubMessage;
 pub use config::Config as NetworkConfig;
+pub use globals::NetworkGlobals;
 pub use libp2p::enr::Enr;
 pub use libp2p::gossipsub::{MessageId, Topic, TopicHash};
 pub use libp2p::multiaddr;