Simplify BABE pre-digest definitions (#5289)

* Init vrf crate without type alias

* Generic PreDigest definition for BABE

* Fix BABE vrf interface change

* Missing default-features def in sp-consensus-babe

* Fix sp-consensus-babe compile

* frame-babe: fix type inference

* Unify type definitions of vrf output/proof and randomness

* frame-babe: fix tests

* Bump node impl version

* Update cargo lock

* Derive Copy for RawVRFOutput and RawVRFProof

* Fix duplicated derive

Co-authored-by: Gavin Wood <gavin@parity.io>

substrate/primitives/core/src/lib.rs

@@ -74,7 +74,7 @@ pub mod testing;
 pub mod tasks;
 
 pub use self::hash::{H160, H256, H512, convert_hash};
-pub use self::uint::U256;
+pub use self::uint::{U256, U512};
 pub use changes_trie::{ChangesTrieConfiguration, ChangesTrieConfigurationRange};
 #[cfg(feature = "full_crypto")]
 pub use crypto::{DeriveJunction, Pair, Public};

substrate/primitives/core/src/uint.rs

@@ -16,7 +16,7 @@
 
 //! An unsigned fixed-size integer.
 
-pub use primitive_types::U256;
+pub use primitive_types::{U256, U512};
 
 #[cfg(test)]
 mod tests {