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/test-utils/runtime/src/lib.rs

@@ -845,11 +845,11 @@ pub mod storage_key_generator {
 	}
 
 	fn concat_hashes(input: &Vec<&[u8]>) -> String {
-		input.iter().map(|s| sp_core::hashing::twox_128(s)).map(hex).collect()
+		input.iter().map(|s| sp_crypto_hashing::twox_128(s)).map(hex).collect()
 	}
 
 	fn twox_64_concat(x: &[u8]) -> Vec<u8> {
-		sp_core::hashing::twox_64(x).iter().chain(x.iter()).cloned().collect::<Vec<_>>()
+		sp_crypto_hashing::twox_64(x).iter().chain(x.iter()).cloned().collect()
 	}
 
 	/// Generate the hashed storage keys from the raw literals. These keys are expected to be be in
@@ -890,7 +890,7 @@ pub mod storage_key_generator {
 				AccountKeyring::Charlie.public().to_vec(),
 			])
 			.map(|pubkey| {
-				sp_core::hashing::blake2_128(&pubkey)
+				sp_crypto_hashing::blake2_128(&pubkey)
 					.iter()
 					.chain(pubkey.iter())
 					.cloned()