changed uint8list to bytelist

[SushantChandla]

Fixed #61

[codecov-commenter]

Codecov Report

Merging #62 (a4be29b) into v1 (c7effec) will decrease coverage by 0.04%.
The diff coverage is 92.85%.

@@            Coverage Diff             @@
##               v1      #62      +/-   ##
==========================================
- Coverage   94.47%   94.42%   -0.05%     
==========================================
  Files          61       61              
  Lines         959      951       -8     
==========================================
- Hits          906      898       -8     
  Misses         53       53              

Impacted Files	Coverage Δ
lib/src/contracts/impl/contract.dart	100.00% <ø> (ø)
...ib/src/micheline_decoder/impl/address_decoder.dart	36.36% <0.00%> (ø)
lib/src/micheline_encoder/impl/option_encoder.dart	100.00% <ø> (ø)
lib/src/core/client/impl/tezart_client.dart	97.29% <100.00%> (-0.14%)	⬇️
.../src/crypto/impl/encrypted_secret_key_to_seed.dart	100.00% <100.00%> (ø)
lib/src/crypto/impl/external_crypto_wrapper.dart	100.00% <100.00%> (ø)
...ib/src/crypto/impl/secret_key_seed_conversion.dart	90.00% <100.00%> (+1.11%)	⬆️
lib/src/keystore/impl/keystore.dart	100.00% <100.00%> (ø)
lib/src/micheline_encoder/impl/pair_encoder.dart	90.90% <100.00%> (ø)
lib/src/signature/impl/signature.dart	100.00% <100.00%> (ø)
... and 6 more

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