Missed passing metadata=self.metadata in Option.process (#135)

* Missed passing `metadata=self.metadata` in `Option.process` (#134)

* Added extrinsic unit test
* Updated Python versions in Github Actions

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Co-authored-by: BD Himes <37844818+thewhaleking@users.noreply.github.com>

ScaleSerializable mixin (#125)

* ScaleSerializable mixin

* Drop 3.7 support

Fixed deploypypi.yml to work with pyproject.toml

Fixed missing value_object with Tuple containing 1 element (#123)

CheckMetadataHash signed extension support (#120)

Cache get decoder class from string (#117)

* Moved the logic from obtaining a decoder class from a string to its own method. This allows caching, which greatly improves performance.

* Added default maxsize arg to lru_cache for Python <3.8 compatibility

* Revert the caching changes of get_decoder_class, instead cache convert_type_string and compile the regex for faster execution.

* Revert the caching changes of get_decoder_class, instead cache convert_type_string and compile the regex for faster execution.

* Okay, actually reverted the initial changes this time.

Check if pallet has call functions (#116)

Merge branch 'master' into az-metadata-v15

Merge branch 'master' into az-metadata-v15

Restored commit tag check