Remove consensus/types re-exports (#8540)

There are certain crates which we re-export within `types` which creates a fragmented DevEx, where there are various ways to import the same crates.

```rust
// consensus/types/src/lib.rs
pub use bls::{
AggregatePublicKey, AggregateSignature, Error as BlsError, Keypair, PUBLIC_KEY_BYTES_LEN,
PublicKey, PublicKeyBytes, SIGNATURE_BYTES_LEN, SecretKey, Signature, SignatureBytes,
get_withdrawal_credentials,
};
pub use context_deserialize::{ContextDeserialize, context_deserialize};
pub use fixed_bytes::FixedBytesExtended;
pub use milhouse::{self, List, Vector};
pub use ssz_types::{BitList, BitVector, FixedVector, VariableList, typenum, typenum::Unsigned};
pub use superstruct::superstruct;
```

This PR removes these re-exports and makes it explicit that these types are imported from a non-`consensus/types` crate.


Co-Authored-By: Mac L <mjladson@pm.me>

beacon_node/execution_layer/src/engine_api/http.rs

@@ -103,9 +103,10 @@ pub static LIGHTHOUSE_JSON_CLIENT_VERSION: LazyLock<JsonClientVersionV1> =
 
 /// Contains methods to convert arbitrary bytes to an ETH2 deposit contract object.
 pub mod deposit_log {
+    use bls::{PublicKeyBytes, SignatureBytes};
     use ssz::Decode;
     use state_processing::per_block_processing::signature_sets::deposit_pubkey_signature_message;
-    use types::{ChainSpec, DepositData, Hash256, PublicKeyBytes, SignatureBytes};
+    use types::{ChainSpec, DepositData, Hash256};
 
     pub use eth2::lighthouse::DepositLog;
 
@@ -1466,10 +1467,13 @@ mod test {
     use super::auth::JwtKey;
     use super::*;
     use crate::test_utils::{DEFAULT_JWT_SECRET, MockServer};
+    use fixed_bytes::FixedBytesExtended;
+    use ssz_types::VariableList;
     use std::future::Future;
     use std::str::FromStr;
     use std::sync::Arc;
-    use types::{FixedBytesExtended, MainnetEthSpec, Unsigned};
+    use typenum::Unsigned;
+    use types::MainnetEthSpec;
 
     struct Tester {
         server: MockServer<MainnetEthSpec>,

beacon_node/execution_layer/src/engine_api/json_structures.rs

@@ -1101,10 +1101,10 @@ impl TryFrom<JsonClientVersionV1> for ClientVersionV1 {
 
 #[cfg(test)]
 mod tests {
+    use bls::{PublicKeyBytes, SignatureBytes};
     use ssz::Encode;
     use types::{
-        ConsolidationRequest, DepositRequest, MainnetEthSpec, PublicKeyBytes, RequestType,
-        SignatureBytes, WithdrawalRequest,
+        ConsolidationRequest, DepositRequest, MainnetEthSpec, RequestType, WithdrawalRequest,
     };
 
     use super::*;