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/lib.rs

@@ -9,6 +9,7 @@ use crate::payload_cache::PayloadCache;
 use arc_swap::ArcSwapOption;
 use auth::{Auth, JwtKey, strip_prefix};
 pub use block_hash::calculate_execution_block_hash;
+use bls::{PublicKeyBytes, Signature};
 use builder_client::BuilderHttpClient;
 pub use engine_api::EngineCapabilities;
 use engine_api::Error as ApiError;
@@ -55,7 +56,7 @@ use types::{
 use types::{
     BeaconStateError, BlindedPayload, ChainSpec, Epoch, ExecPayload, ExecutionPayloadBellatrix,
     ExecutionPayloadCapella, ExecutionPayloadElectra, ExecutionPayloadFulu, ExecutionPayloadGloas,
-    FullPayload, ProposerPreparationData, PublicKeyBytes, Signature, Slot,
+    FullPayload, ProposerPreparationData, Slot,
 };
 
 mod block_hash;