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>

consensus/state_processing/src/per_block_processing/altair/sync_committee.rs

@@ -1,12 +1,12 @@
 use crate::common::{altair::BaseRewardPerIncrement, decrease_balance, increase_balance};
 use crate::per_block_processing::errors::{BlockProcessingError, SyncAggregateInvalid};
 use crate::{VerifySignatures, signature_sets::sync_aggregate_signature_set};
+use bls::PublicKeyBytes;
 use safe_arith::SafeArith;
 use std::borrow::Cow;
+use typenum::Unsigned;
 use types::consts::altair::{PROPOSER_WEIGHT, SYNC_REWARD_WEIGHT, WEIGHT_DENOMINATOR};
-use types::{
-    BeaconState, BeaconStateError, ChainSpec, EthSpec, PublicKeyBytes, SyncAggregate, Unsigned,
-};
+use types::{BeaconState, BeaconStateError, ChainSpec, EthSpec, SyncAggregate};
 
 pub fn process_sync_aggregate<E: EthSpec>(
     state: &mut BeaconState<E>,

consensus/state_processing/src/per_block_processing/process_operations.rs

@@ -5,8 +5,9 @@ use crate::common::{
     slash_validator,
 };
 use crate::per_block_processing::errors::{BlockProcessingError, IntoWithIndex};
+use ssz_types::FixedVector;
+use typenum::U33;
 use types::consts::altair::{PARTICIPATION_FLAG_WEIGHTS, PROPOSER_WEIGHT, WEIGHT_DENOMINATOR};
-use types::typenum::U33;
 
 pub fn process_operations<E: EthSpec, Payload: AbstractExecPayload<E>>(
     state: &mut BeaconState<E>,

consensus/state_processing/src/per_block_processing/signature_sets.rs

@@ -2,17 +2,18 @@
 //! validated individually, or alongside in others in a potentially cheaper bulk operation.
 //!
 //! This module exposes one function to extract each type of `SignatureSet` from a `BeaconBlock`.
-use bls::SignatureSet;
+use bls::{AggregateSignature, PublicKey, PublicKeyBytes, Signature, SignatureSet};
 use ssz::DecodeError;
 use std::borrow::Cow;
 use tree_hash::TreeHash;
+use typenum::Unsigned;
 use types::{
-    AbstractExecPayload, AggregateSignature, AttesterSlashingRef, BeaconBlockRef, BeaconState,
-    BeaconStateError, ChainSpec, DepositData, Domain, Epoch, EthSpec, Fork, Hash256,
-    InconsistentFork, IndexedAttestation, IndexedAttestationRef, ProposerSlashing, PublicKey,
-    PublicKeyBytes, Signature, SignedAggregateAndProof, SignedBeaconBlock, SignedBeaconBlockHeader,
-    SignedBlsToExecutionChange, SignedContributionAndProof, SignedRoot, SignedVoluntaryExit,
-    SigningData, Slot, SyncAggregate, SyncAggregatorSelectionData, Unsigned,
+    AbstractExecPayload, AttesterSlashingRef, BeaconBlockRef, BeaconState, BeaconStateError,
+    ChainSpec, DepositData, Domain, Epoch, EthSpec, Fork, Hash256, InconsistentFork,
+    IndexedAttestation, IndexedAttestationRef, ProposerSlashing, SignedAggregateAndProof,
+    SignedBeaconBlock, SignedBeaconBlockHeader, SignedBlsToExecutionChange,
+    SignedContributionAndProof, SignedRoot, SignedVoluntaryExit, SigningData, Slot, SyncAggregate,
+    SyncAggregatorSelectionData,
 };
 
 pub type Result<T> = std::result::Result<T, Error>;

consensus/state_processing/src/per_block_processing/tests.rs

@@ -11,7 +11,10 @@ use crate::{
     per_block_processing::{process_operations, verify_exit::verify_exit},
 };
 use beacon_chain::test_utils::{BeaconChainHarness, EphemeralHarnessType};
+use bls::{AggregateSignature, Keypair, PublicKeyBytes, Signature, SignatureBytes};
+use fixed_bytes::FixedBytesExtended;
 use ssz_types::Bitfield;
+use ssz_types::VariableList;
 use std::sync::{Arc, LazyLock};
 use test_utils::generate_deterministic_keypairs;
 use types::*;

consensus/state_processing/src/per_block_processing/verify_deposit.rs

@@ -1,5 +1,6 @@
 use super::errors::{BlockOperationError, DepositInvalid};
 use crate::per_block_processing::signature_sets::deposit_pubkey_signature_message;
+use bls::PublicKeyBytes;
 use merkle_proof::verify_merkle_proof;
 use safe_arith::SafeArith;
 use tree_hash::TreeHash;