blake2b 0.2.3

A dart implement of blake2b referenced from blacknet.

0.0.1 basic implement of blake2b

• just follow the blacknet's blake2b to implment it with dart.

0.0.2 wrap a Blake2bHash for common use

0.1.0 use Uint8List instead of Int8List

0.1.2 fix bug due to a wrong implement of array copy

0.2.1 null safety, remove flutter dependency

0.2.2 bugfix: bytes2long() overflow when in chrome see Issue 1

0.2.3 feature: new constructor Blake2b.blake2b(final Uint8List? key, final int digestSize, final Uint8List? salt, final Uint8List? personalization)