Move account credentials to local-tools

beekeepy/beekeepy/_interface/account_credentials.py

beekeepy/beekeepy/interfaces.py

tests/beekeepy_test/handle/api_tests/test_api_close.py

...ekeepy_test/handle/api_tests/test_api_has_matching_key.py

tests/beekeepy_test/handle/api_tests/test_api_import_key.py

tests/beekeepy_test/handle/api_tests/test_api_remove_key.py

tests/beekeepy_test/handle/conftest.py

...simple_flow/prepared_wallets/generate_wallets_and_keys.py

tests/beekeepy_test/handle/various/test_empty_sign_digest.py

..._test/handle/various/test_sign_digest_response_uniques.py

...s/local-tools/local_tools/beekeepy/account_credentials.py

tests/local-tools/local_tools/beekeepy/models.py