chore(NODE-6382): add benchmarking for helpers

[nbbeeken]

Description

What is changing?

• Adds a benchmark suite that will output to our trendcharting tool.

Is there new documentation needed for these changes?

No

What is the motivation for this change?

• There are a number of code paths that don't relate to serialize/deserialize but can still be useful for critical paths in an application. It would be useful to improve those where we can and ensure we maintain the improvements where they are made.
• Help with the change proposed: perf(NODE-6344): Improve ObjectId.isValid(string) performance #708

Double check the following

• Ran npm run check:lint script
• Self-review completed using the steps outlined here
• PR title follows the correct format: type(NODE-xxxx)[!]: description
  • Example: feat(NODE-1234)!: rewriting everything in coffeescript
• Changes are covered by tests
• New TODOs have a related JIRA ticket