Add tool manage service

[zzhangpurdue]

Change Summary

1. add tool manager service module to deploy tool in a docker container, and playing as proxy to visit the tool node container
2. move all tokens setting from init to call method, in order to get different token during runtime
3. update contributing docs
4. make all tools' classes importing by abs path, avoid lint error from lazy loading

Related issue number

Checklist

• [ ] The pull request title is a good summary of the changes - it will be used in the changelog
• [x] Unit tests for the changes exist
• [x] Run pre-commit install and pre-commit run --all-files before git commit, and passed lint check.
• [ ] Some cases need DASHSCOPE_TOKEN_API to pass the Unit Tests, I have at least pass the Unit tests on local
• [ ] Documentation reflects the changes where applicable
• [ ] My PR is ready to review, please add a comment including the phrase "please review" to assign reviewers