input space constraints and update adv lib package

[maurapintor]

Changelog

• New input space constraint that reverts the preprocessing and can be applied to the input space
• Quantization constraint fixed
• Adversarial library now is installed from PyPi (required to successfully run the tests)

Closes #103, #101, #102.

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📚 Documentation preview 📚: https://secml-torch--104.org.readthedocs.build/en/104/

[codecov[bot]]

Codecov Report

Attention: Patch coverage is 92.00000% with 4 lines in your changes missing coverage. Please review.

Project coverage is 90.88%. Comparing base (674b2bc) to head (23b6828). Report is 16 commits behind head on main.

Files with missing lines	Patch %	Lines
src/secmlt/optimization/constraints.py	91.30%	4 Missing :warning:

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #104      +/-   ##
==========================================
+ Coverage   90.79%   90.88%   +0.09%     
==========================================
  Files          49       49              
  Lines        1314     1349      +35     
==========================================
+ Hits         1193     1226      +33     
- Misses        121      123       +2     

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