Bump to latest Substrate (#898)

* Flag to force kusama runtime

* Chainspecs for kusama

* Polkadot config for westend

Co-Authored-By: Bastian Köcher <bkchr@users.noreply.github.com>

* network/src/legacy/gossip: Wrap GossipEngine in Arc Mutex & lock it on use

`GossipEngine` in itself has no need to be Send and Sync, given that it
does not rely on separately spawned background tasks anymore.
`RegisteredMessageValidator` needs to be `Send` and `Sync` due to the
inherited trait bounds from implementing `GossipService`. In addition
`RegisteredMessageValidator` derives `Clone`. Thereby `GossipEngine`
needs to be wrapped in an `Arc` and `Mutex` to keep the status quo.

* Needed fixes.

* Fixes

* Fixed build

* Fixed build w benchmarking CLI

* Fixed building tests

* Added --dev shortcut

Co-authored-by: arkpar <arkady.paronyan@gmail.com>
Co-authored-by: Bastian Köcher <bkchr@users.noreply.github.com>
Co-authored-by: Max Inden <mail@max-inden.de>

polkadot/cli/src/cli.rs

@@ -17,7 +17,6 @@
 //! Polkadot CLI library.
 
 use structopt::StructOpt;
-pub use sc_cli::RunCmd;
 
 #[allow(missing_docs)]
 #[derive(Debug, StructOpt, Clone)]
@@ -45,6 +44,18 @@ pub struct ValidationWorkerCommand {
 	pub mem_id: String,
 }
 
+#[allow(missing_docs)]
+#[derive(Debug, StructOpt, Clone)]
+pub struct RunCmd {
+	#[allow(missing_docs)]
+	#[structopt(flatten)]
+	pub base: sc_cli::RunCmd,
+
+	/// Force using Kusama native runtime.
+	#[structopt(long = "force-kusama")]
+	pub force_kusama: bool,
+}
+
 #[allow(missing_docs)]
 #[derive(Debug, StructOpt, Clone)]
 #[structopt(settings = &[