feat: SECP related hints

[odesenfans]

Context: port of the Starknet OS to Rust.

We need an implementation of the hints used by the Starknet OS in the SECP syscalls. These hints rely on private primitives in cairo-vm and must be implemented in this repository.

Checklist

• Linked to Github Issue
• Unit tests added
• Integration tests added.
• This change requires new documentation.
  • Documentation has been added/updated.
  • CHANGELOG has been updated.

[pefontana]

Hi @odesenfans !!
Sorry the delay, we didn't saw this PR
Can you merge to main and solve the conflicts?

[codecov]

Codecov Report

Attention: Patch coverage is 57.26950% with 241 lines in your changes missing coverage. Please review.

Project coverage is 94.31%. Comparing base (63b4a55) to head (5337a25).
Report is 3 commits behind head on main.

Files with missing lines	Patch %	Lines
...int_processor/builtin_hint_processor/secp/hints.rs	64.57%	169 Missing ⚠️
...int_processor/builtin_hint_processor_definition.rs	14.28%	72 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1829      +/-   ##
==========================================
- Coverage   94.83%   94.31%   -0.53%     
==========================================
  Files         101      102       +1     
  Lines       39579    40142     +563     
==========================================
+ Hits        37536    37858     +322     
- Misses       2043     2284     +241     

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[pefontana]

@odesenfans some more points:

• Since the VM is only allowed to run whitelisted hints in production we cant enable the VM to execute this hints in production. There are two ways to solve this, leaving the hints under a feature flag like cairo-0-secp-hints`, the other way is that you implement your own hint processor in your repo
• There are some lints error in the CI
• There are some unwraps where you can handle the error, like the pop().unwrap(); and some more cases
• Can you add some integration tests for the new hints?