Icon Request: Yahoo
### Acknowledgement

- [X] I have searched through both open and closed issues and confirm that this icon has not been requested earlier.

### Icon

https://github.com/FortAwesome/Font-Awesome/blob/master/svgs/brands/yahoo.svg

### Name suggestion

yahoo

### Use-case

On a login screen, I would have a list of external login providers by their icon.

### Additional information for brand icons

https://legal.yahoo.com/us/en/yahoo/permissions/branduseguidelines/index.html