Added support for ByteString in _restore_typed_primitive (#279)

* Added extended signing key support for cip8

* Fixed unused imports, flake8 checks pass.

* Fixed mypy error for overloaded variable

* Remove extraneous parameter for verify

* Added ByteString to _restored_typed_primitive

* Added type checking

pycardano/serialization.py

@@ -532,6 +532,10 @@ def _restore_typed_primitive(
         if not isinstance(v, list):
             raise DeserializeException(f"Expected type list but got {type(v)}")
         return IndefiniteList([_restore_typed_primitive(t, w) for w in v])
+    elif isclass(t) and t == ByteString:
+        if not isinstance(v, bytes):
+            raise DeserializeException(f"Expected type bytes but got {type(v)}")
+        return ByteString(v)
     elif isclass(t) and issubclass(t, IndefiniteList):
         try:
             return IndefiniteList(v)