Refactor/data bridges knots

[AlexGherardelli]

Description

• Add get_commodity_category_list() function.
• Refactor DataBridgesKnots for maintanaibility, moving endpoints into separate sub-modules.
• Soft-deprecation of DataBridgesShape class, renamed DataBridgesKnots: using DataBridgesShape will throw a Future Deprectaion Warning, while DataBridgesKnots is introduced with all the methods.

Type of Change

• 📚 Examples / docs / tutorials / dependencies update
• 🔧 Bug fix (non-breaking change which fixes an issue)
• 🥂 Improvement (non-breaking change which improves an existing feature)
• 🚀 New feature (non-breaking change which adds functionality)
• 💥 Breaking change (fix or feature that would cause existing functionality to change)
• 🔐 Security fix

Checklist

• I've updated the code style using make codestyle.
• I've written tests for all new methods and classes that I created.
• I've written the docstring in Google format for all the methods and classes that I used.
• My commits follow the Conventional Commits format (fix:, feat:, chore:, etc.).