Implementation of the models package in the public part

...on/tests/base_api/test_operation_get_impacted_accounts.py

python/wax/_private/base_api.py

...nverters/operation_converters/from_proto_to_cpp_string.py

...rters/operation_converters/from_protocol_to_cpp_string.py

python/wax/_private/converters/python_price_converter.py

python/wax/_private/core/constants.py

python/wax/_private/core/format_recognizers/operation.py

python/wax/_private/models/asset.py

python/wax/_private/models/brain_key_data.py

python/wax/_private/models/private_key_data.py

...n/wax/_private/models/transaction_required_authorities.py

python/wax/_private/result_tools.py

python/wax/_private/transaction.py

python/wax/interfaces.py

python/wax/models/__init__.py

python/wax/models/asset.py

python/wax/models/authority.py

python/wax/models/basic.py

python/wax/models/key_data.py

python/wax/models/operations.py