Correct BABE randomness by calculating InOut bytes directly in pallet (#5876)

* vrf: remove Raw* types

* babe: remove Raw* types

* pallet-babe: switch representation of RawVRFOutput to Randomness

* pallet-babe: calculate inout within the pallet

* Remove make_transcript duplication

* Bump spec version

* Fix frame tests

* and_then -> map

* Always enable u64_backend

* Fix nostd compile

* fix import: should not use std

* Remove unused definition of RawVRFOutput

* Remove unused import of RuntimeDebug

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

substrate/Cargo.lock

@@ -4026,6 +4026,7 @@ dependencies = [
  "pallet-timestamp",
  "parity-scale-codec",
  "serde",
+ "sp-application-crypto",
  "sp-consensus-babe",
  "sp-consensus-vrf",
  "sp-core",
@@ -7404,6 +7405,7 @@ dependencies = [
 name = "sp-consensus-babe"
 version = "0.8.0-dev"
 dependencies = [
+ "merlin",
  "parity-scale-codec",
  "sp-api",
  "sp-application-crypto",