icon request: fa-freebsd FreeBSD logo
<!-- Please review open and closed issues that the icon hasn't been requested before. -->

## Icon

![image](https://user-images.githubusercontent.com/1639481/114663723-0801eb80-9cfb-11eb-94be-c6c2d36347f5.png)

The svg file could be downloaded here: https://seeklogo.com/vector-logo/273101/freebsd

## Name Suggestion
Name suggestiion: fa-freebsd


## Use Case

useful for all people who want to signify they use FreeBSD, like the Linux for the logo  


Many thanks for all your job.