Update Substrate Dependency (#566)

* Update `sp-io` dependency

* Rename Trait to Config

* RustFmt

* Bump `sp-io` again

* Use new frame_system weight types in Rialto and Millau runtimes

* Update test Runtimes to use new weight types

* Bump `sp-io` again

* Update to not-the latest first.

* Update benchmarks.

* Another Trai.

* Move new weight types into runtime primitive crates

This allows us to check limits for extrinsics from other parts
of the codebase without pulling in the entire chain runtime.

* Remove leftover comments

* Move new functions to a better location

* Small formatting fixes

* Add actual documentation to new weight config types

* Decrease maximum block weight of Millau chain

* Decreease maximum block length of Millau chain

Co-authored-by: Tomasz Drwięga <tomasz@parity.io>

bridges/modules/substrate/src/storage_proof.rs

@@ -65,7 +65,7 @@ pub enum Error {
 	StorageValueUnavailable,
 }
 
-impl<T: crate::Trait> From<Error> for crate::Error<T> {
+impl<T: crate::Config> From<Error> for crate::Error<T> {
 	fn from(error: Error) -> Self {
 		match error {
 			Error::StorageRootMismatch => crate::Error::StorageRootMismatch,