Initial Interop Updates (#492)

* Add interop chain spec and rename chain_id

* Add ability to connect to raw libp2p nodes

* Adds Identify protocol, clean up RPC protocol name handling

* Update to latest libp2p, gossipsub improvements

* Updates to latest interop branch.

- Shifts decoding of objects into message handler.
- Updates to latest interop gossipsub.
- Adds interop spec constant.

* Configuration updates allow for verbosity CLI flag and spec constants

* Update submodules to master

* Correct minimal chainspec modifications

* Duplication of validator polls are no longer fatal

* Apply PR suggestions

beacon_node/src/run.rs

@@ -13,7 +13,7 @@ use tokio::runtime::Builder;
 use tokio::runtime::Runtime;
 use tokio::runtime::TaskExecutor;
 use tokio_timer::clock::Clock;
-use types::{MainnetEthSpec, MinimalEthSpec};
+use types::{InteropEthSpec, MainnetEthSpec, MinimalEthSpec};
 
 /// Reads the configuration and initializes a `BeaconChain` with the required types and parameters.
 ///
@@ -90,6 +90,22 @@ pub fn run_beacon_node(
             runtime,
             log,
         ),
+        ("disk", "interop") => run::<ClientType<DiskStore, InteropEthSpec>>(
+            &db_path,
+            client_config,
+            eth2_config,
+            executor,
+            runtime,
+            log,
+        ),
+        ("memory", "interop") => run::<ClientType<MemoryStore, InteropEthSpec>>(
+            &db_path,
+            client_config,
+            eth2_config,
+            executor,
+            runtime,
+            log,
+        ),
         (db_type, spec) => {
             error!(log, "Unknown runtime configuration"; "spec_constants" => spec, "db_type" => db_type);
             Err("Unknown specification and/or db_type.".into())