Metadata v14 (companion to #3336) (#564)

* Remove event pallet::metadata attributes

* Add scale-info deps, TypeInfo derives, update call variants

* Update metadata runtime APIs

* Add missing scale_info dependency, update rococo runtime API

* Add missing scale_info dependency

* Remove pushed diener patches

* Cargo.lock

* Add missing scale-info dependencies

* Fixes

* Statemint runtime fixes

* Call struct variant empty matches

* Add missing scale-info dependency

* Fixes

* scale-info 1.0

* cargo update -p xcm

* update lock

* Update Cargo.lock

* update to latest polkadot

* remove rpc_http_threads

https://github.com/paritytech/substrate/pull/9737

* replace task executor with tokio handler

https://github.com/paritytech/substrate/pull/9737

* fix test compilation?

* Update Cargo.lock

* cargo update

* remove unused

* Update substrate and polkadot

* Update test/client/src/lib.rs

Co-authored-by: Shawn Tabrizi <shawntabrizi@gmail.com>
Co-authored-by: Bastian Köcher <bkchr@users.noreply.github.com>

pallets/collator-selection/src/lib.rs

@@ -162,7 +162,7 @@ pub mod pallet {
 	}
 
 	/// Basic information about a collation candidate.
-	#[derive(PartialEq, Eq, Clone, Encode, Decode, RuntimeDebug)]
+	#[derive(PartialEq, Eq, Clone, Encode, Decode, RuntimeDebug, scale_info::TypeInfo)]
 	pub struct CandidateInfo<AccountId, Balance> {
 		/// Account identifier.
 		pub who: AccountId,
@@ -247,7 +247,6 @@ pub mod pallet {
 	}
 
 	#[pallet::event]
-	#[pallet::metadata(T::AccountId = "AccountId", BalanceOf<T> = "Balance")]
 	#[pallet::generate_deposit(pub(super) fn deposit_event)]
 	pub enum Event<T: Config> {
 		NewInvulnerables(Vec<T::AccountId>),