feat: add debugging hints

[greged93]

Feature

In the previous python vm which allowed for any python hints to run, it was quite easy to debug issues in your code. It is however a lot harder now if running cairo 0 on the rust vm. This causes slowed down devx where some tests are ran on the cairo rust vm for increased speed but then debugged on the cairo python vm for easier tracing of issues.

Preferred solution

Add custom debugging hints, which allow to print various cairo vm structures (felt, array, dict). This would be hidden behind a feature flag, allowing to only be used when necessary and not included in production.