O11Y-4010: Add ContextManager for Context

[changliu-wk]

Which problem is this PR solving?

• Add ContextManager interface
• Make Context abstract/interface.
  • The static current/root methods should be updated to pull from the static global ContextManager.
  • The default context manager should be the existing Dart zone implementation
  • Static context manager registration function is added to allow overriding context manager at runtime.
• Pull the Dart zone logic into its own implementation
• Experts necessary method to be public Fixes # (issue)

Short description of the change

How Has This Been Tested?

CI test would be efficient.

Checklist:

• [ ] Unit tests have been added
• [ ] Documentation has been updated

[aviary2-wf]

Security Insights

No security relevant content was detected by automated scans.

Action Items

• Review PR for security impact; comment "security review required" if needed or unsure

• Verify aviary.yaml coverage of security relevant code

  Questions or Comments? Reach out on Slack: #support-infosec.

[changliu-wk]

After discussed with @blakeroberts-wk, we decided to revert the breaking changes, we will have follow up tickets about the API redesign.

[jonathancampbell-wk]

After discussed with @blakeroberts-wk, we decided to revert the breaking changes, we will have follow up tickets about the API redesign.

Which changes do we want to push to future PRs?

[changliu-wk]

Which changes do we want to push to future PRs?

I think we would like to mimic what opentelemetry-js does, with some adjustments, like not having delete method within context api.

[changliu-wk]

@Workiva/release-management-p

[changliu-wk]

QA+1