feat: boolean function to check if world is broken

[myungjin]

Description

A broken world exception is raised for collective operations such as send and recv. However, if those operations are not called and runtime error is not raised, the broken world won't be noticed until any of the operations is called. To check if the world is broken or not without calling the operations, a new function is introduced.

Type of Change

• [ ] Bug Fix
• [x] New Feature
• [ ] Breaking Change
• [ ] Refactor
• [ ] Documentation
• [ ] Other (please describe)

Checklist

• [ ] I have read the contributing guidelines
• [ ] Existing issues have been referenced (where applicable)
• [ ] I have verified this change is not present in other open pull requests
• [ ] Functionality is documented
• [ ] All code style checks pass
• [ ] New code contribution is covered by automated tests
• [ ] All new and existing tests pass