docs(package): add missing docs

[bismapervaiz]

What

This PR adds missing documentation for the package files in the Go project.

Why

The documentation is essential for improving code readability, maintainability, and enabling other developers to understand the package's functionality and usage.

Type of change

Select multiple if applicable.

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause a breaking change)
• Tests (adds or updates tests)
• Documentation (adds or updates documentation)
• Refactor (style improvements, performance improvements, code refactoring)
• Revert (reverts a commit)
• CI/Build (adds or updates a script, change in external dependencies)

Dependency Change

N/A

Breaking change

No breaking changes introduced in this PR.

Testing

Testing wasn't required since no changes were introduced in the code.

Checklist

• My code follows the coding conventions
• I have performed a self-review of my own code
• I have commented my code, particularly in hard-to-understand areas
• I have added new unit tests