feat: upgrade from base line 8.1.0 to tag 8.4.2 #78

[hustjieke]

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Summary

Briefly describe what this PR aims to solve. Include background context that will help reviewers understand the purpose of the PR.

[summary]

1. cover old code using tag-8.4.2
2. from this commmit, backport code from past 810
3. more than 842: CODE_OF_CONDUCT.md, README.md, ml
4. ndb using c++20 feature: std::range::any_of() & std::range::none_of(), rollback to c++11 standard std::any_of() & std::none_of() for compile success in mac.

• Fixes #78

Tests

• [ ] Unit Test
• [ ] Logic Test
• [ ] Benchmark Test
• [ ] No Test - Explain why

Type of change

• [ ] Bug Fix (non-breaking change which fixes an issue)
• [ ] New Feature (non-breaking change which adds functionality)
• [ ] Breaking Change (fix or feature that could cause existing functionality not to work as expected)
• [ ] Documentation Update
• [ ] Refactoring
• [ ] Performance Improvement
• [ ] Other (please describe):