Move grandpa crates to consensus folder (#13458)

* Move grandpa under consensus dir
* Rename grandpa folder
* Finish grandpa renaming
* Minor tweaks
* Cargo fmt
* Adjust path to chain spec

substrate/client/network/common/src/sync/warp.rs

@@ -16,7 +16,7 @@
 
 use codec::{Decode, Encode};
 use futures::channel::oneshot;
-pub use sp_finality_grandpa::{AuthorityList, SetId};
+pub use sp_consensus_grandpa::{AuthorityList, SetId};
 use sp_runtime::traits::{Block as BlockT, NumberFor};
 use std::{fmt, sync::Arc};