Split common crates out into their own repos (#3890)

## Proposed Changes

Split out several crates which now exist in separate repos under `sigp`.

- [`ssz` and `ssz_derive`](https://github.com/sigp/ethereum_ssz)
- [`tree_hash` and `tree_hash_derive`](https://github.com/sigp/tree_hash)
- [`ethereum_hashing`](https://github.com/sigp/ethereum_hashing)
- [`ethereum_serde_utils`](https://github.com/sigp/ethereum_serde_utils)
- [`ssz_types`](https://github.com/sigp/ssz_types)

For the published crates see: https://crates.io/teams/github:sigp:crates-io?sort=recent-updates.

## Additional Info

- [x] Need to work out how to handle versioning. I was hoping to do 1.0 versions of several crates, but if they depend on `ethereum-types 0.x` that is not going to work. EDIT: decided to go with 0.5.x versions.
- [x] Need to port several changes from `tree-states`, `capella`, `eip4844` branches to the external repos.

validator_client/slashing_protection/Cargo.toml

@@ -18,7 +18,7 @@ r2d2_sqlite = "0.21.0"
 serde = "1.0.116"
 serde_derive = "1.0.116"
 serde_json = "1.0.58"
-eth2_serde_utils = "0.1.1"
+ethereum_serde_utils = "0.5.0"
 filesystem = { path = "../../common/filesystem" }
 arbitrary = { version = "1.0", features = ["derive"], optional = true }
 

validator_client/slashing_protection/src/interchange.rs

@@ -9,7 +9,7 @@ use types::{Epoch, Hash256, PublicKeyBytes, Slot};
 #[serde(deny_unknown_fields)]
 #[cfg_attr(feature = "arbitrary", derive(arbitrary::Arbitrary))]
 pub struct InterchangeMetadata {
-    #[serde(with = "eth2_serde_utils::quoted_u64::require_quotes")]
+    #[serde(with = "serde_utils::quoted_u64::require_quotes")]
     pub interchange_format_version: u64,
     pub genesis_validators_root: Hash256,
 }
@@ -27,7 +27,7 @@ pub struct InterchangeData {
 #[serde(deny_unknown_fields)]
 #[cfg_attr(feature = "arbitrary", derive(arbitrary::Arbitrary))]
 pub struct SignedBlock {
-    #[serde(with = "eth2_serde_utils::quoted_u64::require_quotes")]
+    #[serde(with = "serde_utils::quoted_u64::require_quotes")]
     pub slot: Slot,
     #[serde(skip_serializing_if = "Option::is_none")]
     pub signing_root: Option<Hash256>,
@@ -37,9 +37,9 @@ pub struct SignedBlock {
 #[serde(deny_unknown_fields)]
 #[cfg_attr(feature = "arbitrary", derive(arbitrary::Arbitrary))]
 pub struct SignedAttestation {
-    #[serde(with = "eth2_serde_utils::quoted_u64::require_quotes")]
+    #[serde(with = "serde_utils::quoted_u64::require_quotes")]
     pub source_epoch: Epoch,
-    #[serde(with = "eth2_serde_utils::quoted_u64::require_quotes")]
+    #[serde(with = "serde_utils::quoted_u64::require_quotes")]
     pub target_epoch: Epoch,
     #[serde(skip_serializing_if = "Option::is_none")]
     pub signing_root: Option<Hash256>,