refactor: refine runtime and tracing options

[MrCroxx]

What's changed and what's your intention?

Please explain IN DETAIL what the changes are in this PR and why they are needed. :D

Changes

• Rename RuntimeConfig and TokioRuntimeConfig to RuntimeOptions and TokioRuntimeOptions for consistency.
• Split TracingConfig to TracingConfig and TracingOptions and refine codes.
• Refine tracing configuration for foyer-bench.

Checklist

• I have written the necessary rustdoc comments
• I have added the necessary unit tests and integration tests
• I have passed make all (or make fast instead if the old tests are not modified) in my local environment.

Related issues or PRs (optional)

#327

[codecov]

Codecov Report

Attention: Patch coverage is 88.28829% with 13 lines in your changes missing coverage. Please review.

Files with missing lines	Patch %	Lines
foyer-bench/src/main.rs	50.00%	9 Missing ⚠️
foyer-common/src/tracing.rs	94.82%	3 Missing ⚠️
foyer-storage/src/store.rs	85.71%	1 Missing ⚠️

Files with missing lines	Coverage Δ
foyer/src/hybrid/builder.rs	95.15% <100.00%> (ø)
foyer/src/hybrid/cache.rs	82.71% <100.00%> (+0.05%)	⬆️
foyer-storage/src/store.rs	86.06% <85.71%> (ø)
foyer-common/src/tracing.rs	87.12% <94.82%> (+4.23%)	⬆️
foyer-bench/src/main.rs	65.29% <50.00%> (-0.33%)	⬇️

... and 1 file with indirect coverage changes