Enhancement 137

[jorgezerpa]

Detailed Information

Some enhancements to the current code base:

• Create a specific Interface for each contract (NFT and LandRegister) instead of a single interface file.
• Extract the events of the contract into the interface files so it's easier to access them on tests.
• There are some error messages that are not in custom error files, instead are hardcoded into the assert message.
• Some errors of the NFT contract are inside a local errors module instead of the custom_error file, which may be a bit confusing.

Note: This changes has the current changes of the marketplace -> #148

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Closes #137

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Type of Change

• 🐛 Bug fix or ⚙️ enhancement
• ✨ New feature or Chore (change with no new features or fixes)
• 📚 Documentation update

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Checklist (select as many as applicable)

• The code follows the style guidelines of this project.
• All new and existing tests pass.
• This pull request is ready to be merged and reviewed.