[PR] refactoring + pyTest

[rapidrabbit76]

Summary

refactoring

Work

• tensorflow 2.7.1 support
• wandb logger support
• pytest test code
• github action integration
• refactoring

[Sam2much96]

Glad you're active dev. I truely really appreciate your code.

[rapidrabbit76]

oh .. I did not know anyone was interested in my project. haha

I'll be uploading a serving backend soon.

If there is a feature need, please leave an issue and i will update it.