Perf/bounded comparator

[ggq89]

Description

This PR mainly annotates IsLess and IsLessEq of BoundedComparator and adds test cases to prevent misuse.

Type of change

• This change requires a documentation update

How has this been tested?

• TestBoundedComparator

How has this been benchmarked?

• Benchmark A, on Macbook pro M1, 32GB RAM
• Benchmark B, on x86 Intel xxx, 16GB RAM

Checklist:

• I have performed a self-review of my code
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation
• I have added tests that prove my fix is effective or that my feature works
• I did not modify files generated from templates
• golangci-lint does not output errors locally
• New and existing unit tests pass locally with my changes
• Any dependent changes have been merged and published in downstream modules

[ggq89]

In general, it is recommended that BoundedComparator do not provide the IsLess and IsLessEq methods to the outside world. First, they are easy to misuse, and second, there are alternative methods in generic.