request for new icons
**Feature request**
Request you to add following icons:
- Language (for i18n)
- Accessibility 
- Scatter chart
- Gauge chart 
- Dashboard
- Heat map
- Credit cards (specific for popular brands like Amex, visa and master )
- **For Maps**:
   - Transportation types (cycle/bike, motor bike, walking, cab, car, rail, flight and bus) 
   - Traffic light, traffic cone, tow-away, speed limit (20, 40, 60, 80) and other traffic signs
   - First responder (medical, fire, police).
   - Buildings (government, residential, hotel, individual house, apartment etc.)
   - Parking, parks, camping, tourist attraction, museum etc.
   - Routing
- Unlink (complement icon for link icon which exists)
 