Move cryptographic hashing procedures to crypto folder. (#2306)

Step towards https://github.com/paritytech/polkadot-sdk/issues/1975

As reported
https://github.com/paritytech/polkadot-sdk/issues/1975#issuecomment-1774534225
I'd like to encapsulate crypto related stuff in a dedicated folder.

Currently all cryptographic primitive wrappers are all sparsed in
`substrate/core` which contains "misc core" stuff.

To simplify the process, as the first step with this PR I propose to
move the cryptographic hashing there.

The `substrate/crypto` folder was already created to contains `ec-utils`
crate.

Notes:
- rename `sp-core-hashing` to `sp-crypto-hashing`
- rename `sp-core-hashing-proc-macro` to `sp-crypto-hashing-proc-macro`
- As the crates name is changed I took the freedom to restart fresh from
version 0.1.0 for both crates

---------

Co-authored-by: Robert Hambrock <roberthambrock@gmail.com>

substrate/client/consensus/grandpa/src/import.rs

@@ -32,7 +32,6 @@ use sp_api::{Core, RuntimeApiInfo};
 use sp_blockchain::BlockStatus;
 use sp_consensus::{BlockOrigin, Error as ConsensusError, SelectChain};
 use sp_consensus_grandpa::{ConsensusLog, GrandpaApi, ScheduledChange, SetId, GRANDPA_ENGINE_ID};
-use sp_core::hashing::twox_128;
 use sp_runtime::{
 	generic::OpaqueDigestItemId,
 	traits::{Block as BlockT, Header as HeaderT, NumberFor, Zero},
@@ -438,7 +437,11 @@ where
 			// The new API is not supported in this runtime. Try reading directly from storage.
 			// This code may be removed once warp sync to an old runtime is no longer needed.
 			for prefix in ["GrandpaFinality", "Grandpa"] {
-				let k = [twox_128(prefix.as_bytes()), twox_128(b"CurrentSetId")].concat();
+				let k = [
+					sp_crypto_hashing::twox_128(prefix.as_bytes()),
+					sp_crypto_hashing::twox_128(b"CurrentSetId"),
+				]
+				.concat();
 				if let Ok(Some(id)) =
 					self.inner.storage(hash, &sc_client_api::StorageKey(k.to_vec()))
 				{