feat(assex): custom inspectors in assex

[makemake-kbo]

• Enables the use of supplemental inspectors during transaction validation
• When phoundry is enabled, we include validate_transaction_with_inspector which lets us specify a custom supplemental inspector.
• We return a TxValidationResultWithInspectors which includes the tx result + inspectors so they can be inspected post execution

[linear]

ENG-1906 feat(assex): Custom inspectors in assex

[odyslam]

For context: This PR is to be used on phoundry to enable the tracing inspector and enable users to see traces of their assertion execution, useful when you are testing or debugging assertions (e.g. for false positives)

To be used: phylaxsystems/phoundry#78

[lean-apple]

Lets' try now to avoid the TODO/ clippy warning skip.

[github-actions]

Benchmark report is ready.

• Report: https://phylaxsystems.github.io/credible-sdk/main-bench/pr-596/report/
  No significant benchmark changes detected.

[github-actions]

Benchmark report is ready.

• Report: https://phylaxsystems.github.io/credible-sdk/main-bench/pr-596/report/
  No significant benchmark changes detected.