* Add ability to specify Ubuntu version (focal, groovy tested)
* Add ability to specify Linux package to install (linux-generic, linux-generic-hwe-20.04 tested)
* Add ability to specify system "name" which writes to ISO volume id, hostname, and iso filename.
* Version bump config file for breaking change
* Add readme in scripts directory for instructions on how to use.
Set up the base Ubuntu bootstrap, then start the chroot (-c option) and follow the README. After installing any desktop-session, you can run an X session (-x option) and use graphical tools such synaptic. Once done, create the final ISO (-b option).