Fix problems with BSD-VM
Fix problems with BSD-VM

- Set a MAC address
- Set shell to CSH, as there is no Bash on BSD

dritter/powerlevel9k,bhilburn/powerlevel9k,bhilburn/powerlevel9k,shibumi/powerlevel9k,shibumi/powerlevel9k,natemccurdy/powerlevel9k,natemccurdy/powerlevel9k,rjorgenson/powerlevel9k,rjorgenson/powerlevel9k,dritter/powerlevel9k