feat(examples): add cheatcode inspector example

[agostbiro]

As discussed, adding an example that shows how to implement a Foundry-style Solidity test cheatcode inspector to make sure future changes account for this use-case.

[codspeed-hq]

CodSpeed Performance Report

Merging #2003 will improve performances by 3.17%

_{Comparing agostbiro:cheatcode-inspector-example (b1129bf) with main (39eaab7)}

Summary

⚡ 1 improvements
✅ 7 untouched benchmarks

Benchmarks breakdown

	Benchmark	main	agostbiro:cheatcode-inspector-example	Change
⚡	precompile bench | ecrecover precompile	201.8 µs	195.6 µs	+3.17%

[rakita]

lgtm