🚀 feat: Integrated HypEx, updated tutorials, improved docs, and cleaned legacy code

Description:

This PR introduces improvements to LightAutoML by integrating HypEx as an optional dependency, restructuring tutorials, and removing legacy HypEx code.

1. Integrated HypEx as an Optional Dependency:

Changes Made:

• Removed all legacy HypEx code from LightAutoML.
• Created a new __init__.py in lightautoml/addons/hypex with dynamic imports that mirror the original HypEx structure.
• Added hypex as an optional dependency in pyproject.toml.
• Configured intersphinx to link HypEx documentation.

2. Updated Tutorials:

Path: examples/tutorials/

New Tutorials Created:

• Tutorial_12_AA_Test.ipynb
• Tutorial_13_AA_Test_multigroup_split.ipynb
• Tutorial_14_AB_Test.ipynb
• Tutorial_15_Matching.ipynb
• Tutorial_16_Matching_without_replacement.ipynb
• Tutorial_17_Modeling_Limit_Distribution.ipynb
• Tutorial_18_Test_Limit_Distribution.ipynb

3. Updated Documentation:

File Modified: docs/pages/Tutorials.rst

What’s Done:

• Added links to all newly created tutorials.
• Reorganized Tutorials.rst:
  • Sections:
    • LightAutoML Tutorials with subgroups:
      • Core Features
      • Advanced Topics
    • HypEx Tutorials with subgroups:
      • A/B and A/A Testing
      • Matching and Filtering
      • Modeling and Testing Limits
  • Updated paths for all .nblink files.

4. Created .nblink Files:

Path: docs/pages/tutorials/

Automatically Generated Files:

• Tutorial_12_AA_Test.nblink
• Tutorial_13_AA_Test_multigroup_split.nblink
• Tutorial_14_AB_Test.nblink
• Tutorial_15_Matching.nblink
• Tutorial_16_Matching_without_replacement.nblink
• Tutorial_17_Modeling_Limit_Distribution.nblink
• Tutorial_18_Test_Limit_Distribution.nblink

5. Code Style and Linting Fixes:

• Applied codespell to fix typos.
• Excluded generated and documentation files from spell checking.

How to Test:

1. Run Full Project Check:

   tox

2. Check Documentation Only:

   tox -e docs
   open docs/_build/html/index.html  # macOS

3. Expected Results:

   • Tutorials should be visible and correctly linked in the documentation.
   • All imports from lightautoml.addons.hypex should work seamlessly.
   • No build errors or missing dependencies should occur.

Notes for Reviewers:

• The tutorials have been validated with updated imports and correct functionality.
• The HypEx integration keeps LightAutoML modular while ensuring full backward compatibility.