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/rpc/src/author/tests.rs

@@ -29,13 +29,13 @@ use jsonrpsee::{
 use sc_transaction_pool::{BasicPool, FullChainApi};
 use sc_transaction_pool_api::TransactionStatus;
 use sp_core::{
-	blake2_256,
 	bytes::to_hex,
 	crypto::{ByteArray, Pair},
 	ed25519,
 	testing::{ED25519, SR25519},
 	H256,
 };
+use sp_crypto_hashing::blake2_256;
 use sp_keystore::{testing::MemoryKeystore, Keystore};
 use sp_runtime::Perbill;
 use std::sync::Arc;

substrate/client/rpc/src/state/tests.rs

@@ -251,9 +251,9 @@ async fn should_send_initial_storage_changes_and_notifications() {
 		let (api, _child) = new_full(client.clone(), test_executor(), DenyUnsafe::No);
 
 		let alice_balance_key = [
-			sp_core::hashing::twox_128(b"System"),
-			sp_core::hashing::twox_128(b"Account"),
-			sp_core::hashing::blake2_128(&AccountKeyring::Alice.public()),
+			sp_crypto_hashing::twox_128(b"System"),
+			sp_crypto_hashing::twox_128(b"Account"),
+			sp_crypto_hashing::blake2_128(&AccountKeyring::Alice.public()),
 		]
 		.concat()
 		.iter()