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/availability-store/src/lib.rs

@@ -35,7 +35,7 @@ use polkadot_primitives::{
 use sp_runtime::traits::HashFor;
 use sp_blockchain::{Result as ClientResult};
 use client::{
-	BlockchainEvents, BlockBody,
+	BlockchainEvents, BlockBackend,
 };
 use sp_api::{ApiExt, ProvideRuntimeApi};
 use codec::{Encode, Decode};
@@ -178,7 +178,7 @@ impl Store {
 		keystore: KeyStorePtr,
 	) -> ClientResult<AvailabilityBlockImport<I, P>>
 	where
-		P: ProvideRuntimeApi<Block> + BlockchainEvents<Block> + BlockBody<Block> + Send + Sync + 'static,
+		P: ProvideRuntimeApi<Block> + BlockchainEvents<Block> + BlockBackend<Block> + Send + Sync + 'static,
 		P::Api: ParachainHost<Block>,
 		P::Api: ApiExt<Block, Error=sp_blockchain::Error>,
 		// Rust bug: https://github.com/rust-lang/rust/issues/24159