Added metrics converter

[samithawijesekara]

🛠️ Fixes Issue (Number)

👨‍💻 Changes proposed

✅ Check List (Check all the applicable boxes)

• My code doesn't break any part of the project (Zero Octave-Javascript-Projects).
• This PR does not contain plagiarized content.
• My Addition/Changes works properly and matches the overall repo pattern.
• The title of my pull request is a short description of the requested changes.

📄 Note to reviewers

📷 Screenshots

[Anmol-Baranwal]

• Follow the directory structure of the repository, and make appropriate changes.

• Remove the files, whose functionality is already achieved by any existing project. e.g. Temperature converter, and others

[github-actions]

Thank you @samithawijesekara for taking out your valuable time in order to contribute to our project. Looking forward for more such amazing contributions :)