[Enhancement]: stable code formating

[reiase]

Is there an existing issue for this?

• I have searched the existing issues

What would you like to be added?

The developers are using different editors and IDEs when developing towhee, making the format of code not stable. We can use a git hook to reformat the code before commit:

pip install pre-commit black autoflake
pre-commit install
# the following command is optional, but needed if you have already committed some files to your forked repo.
pre-commit run --all-files

Why is this needed?

No response

Anything else?

No response

[stale]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions. Rotten issues close after 30d of inactivity. Close the stale issues and pull requests after 7 days of inactivity. Reopen the issue with /reopen.