feat(connectors): mysql2 support

[arashsheyda]

🔗 Linked issue

related to #32

❓ Type of change

• [x] 📖 Documentation (updates to the documentation, readme, or JSdoc annotations)
• [ ] 🐞 Bug fix (a non-breaking change that fixes an issue)
• [ ] 👌 Enhancement (improving an existing functionality like performance)
• [x] ✨ New feature (a non-breaking change that adds functionality)
• [ ] 🧹 Chore (updates to the build process or auxiliary tools and libraries)
• [ ] ⚠️ Breaking change (fix or feature that would cause existing functionality to change)

📚 Description

this PR adds support for mysql connector using mysql2 + an example of mysql (also I'm sorry in advanced if I over stepped, I was checking this fantastic module and couldn't resist trying)

📝 Checklist

• [x] I have linked an issue or discussion.
• [x] I have updated the documentation accordingly.