Add toml config and gather dependency files

[WenjieDu]

What does this PR do?

1. fixing Config the project with pyproject.toml rather than setup.py #476;
2. put all dependency files in one dir;

Before submitting

• Was this discussed/approved via a GitHub issue? Please add a link to it if that's the case.
• I have commented my code, particularly in hard-to-understand areas.
• I have written necessary tests and already run them locally.