Alpha Version - The Single Reboot Install

Up until now, if you were installing PrawnOS and a desktop environment you had to restart once after "installing" PrawnOS onto your targeted storage, and again after running InstallPackages.sh.

Now we don't need the second reboot. Everything can take place before the first reboot during the InstallPrawnOS.sh script. The script will now ask to install packages and a desktop environment, and use chroot to run it on the targeted storage. No need to run InstallPackages.sh separately any more.

-Fixed filesystem expansion in InstallPrawnOS.sh

-Also changed how PrawnOS maps the function keys like volume and brightness. Thanks to @rk-zero borrowed the xkb layouts that gallium uses, so no more need for xmodmap and udev.

-Finally, added CompilePanfrost.sh to InstallResources from @rk-zero. This can be used to build mesa and test out panfrost.