Uses the Python API from Parallels Virtualization SDK to write
boot commands.
This eliminates a 3rd party requirement and makes it easier for people
not using homebrew to get started with packer.
The IP address that the guest OS connect to download files from the
http_dir is determined by searching for a host interface with an IP
assigned. Now it is possible to use host_interfaces to select which
interfaces are searched.
JessThrysoee
Mikhail Zholobov
Rickard von Essen
Ross Smith II