feat: Bengali language support

[Rayhan-kh]

🚀 Description

Added language support for "Bengali"

📄 Motivation and Context

I am from Bangladesh and have used this library for a few projects. As Bengali support was not available I added it

🧪 How Has This Been Tested?

Tested on my local project

📷 Screenshots (if appropriate)

📦 Types of changes

• [x] 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 existing functionality to not work as expected)

✅ Checklist

• [x] My code follows the code style of this project.
• [ ] My change requires a change to the documentation.
• [ ] I have updated the documentation accordingly.