Add a new bls test (#3235)

## Issue Addressed

Which issue # does this PR address?
#2629 

## Proposed Changes

Please list or describe the changes introduced by this PR.

1. ci would dowload the bls test cases from https://github.com/ethereum/bls12-381-tests/
2. all the bls test cases(except eth ones) would use cases in the archive from step one
3. The bls test cases from https://github.com/ethereum/consensus-spec-tests would stay there and no use . For the future , these bls test cases would be remove suggested from https://github.com/ethereum/consensus-spec-tests/issues/25 . So it would do no harm and compatible for future cases.

## Additional Info

Please provide any additional information. For example, future considerations
or information useful for reviewers.


Question: 

I am not sure if I should implement tests about `deserialization_G1`, `deserialization_G2` and `hash_to_G2` for the issue.

crypto/bls/src/lib.rs

@@ -90,6 +90,7 @@ pub mod generics {
     pub use crate::generic_secret_key::GenericSecretKey;
     pub use crate::generic_signature::GenericSignature;
     pub use crate::generic_signature_bytes::GenericSignatureBytes;
+    pub use crate::generic_signature_set::WrappedSignature;
 }
 
 /// Defines all the fundamental BLS points which should be exported by this crate by making
@@ -109,6 +110,13 @@ macro_rules! define_mod {
             pub type AggregatePublicKey =
                 GenericAggregatePublicKey<bls_variant::PublicKey, bls_variant::AggregatePublicKey>;
             pub type Signature = GenericSignature<bls_variant::PublicKey, bls_variant::Signature>;
+            pub type BlsWrappedSignature<'a> = WrappedSignature<
+                'a,
+                bls_variant::PublicKey,
+                bls_variant::AggregatePublicKey,
+                bls_variant::Signature,
+                bls_variant::AggregateSignature,
+            >;
             pub type AggregateSignature = GenericAggregateSignature<
                 bls_variant::PublicKey,
                 bls_variant::AggregatePublicKey,