Add new live_exam_os

...onfig/01-build_hooks/themes/i3/xfwm4/top-right-active.xpm

...fig/01-build_hooks/themes/i3/xfwm4/top-right-inactive.png

...fig/01-build_hooks/themes/i3/xfwm4/top-right-inactive.xpm

live_exam_os/config/01-build_hooks/x11/x11_settings.desktop

live_exam_os/config/01-build_hooks/x11/x11_settings.sh

live_exam_os/config/01-initramfs/init

live_exam_os/config/01-initramfs/init_no_luks

live_exam_os/config/02-packages_install/packages

...stall_hooks/9999-packages_removal_and_cleanup.hook.chroot

live_exam_os/config/03-boot_hooks/1000-remove_user_pwd

live_exam_os/config/03-boot_hooks/1000-set_user_pwd

...xam_os/config/03-boot_hooks/2000-chown_user_desktop_files

live_exam_os/config/03-boot_hooks/3000-certificates

live_exam_os/config/03-boot_hooks/9999-firewall

...n/etc/NetworkManager/system-connections/wifi.nmconnection

...workManager/system-connections/wifi.nmconnection.example1

...workManager/system-connections/wifi.nmconnection.example2

live_exam_os/config/03-customisation/etc/default/keyboard

live_exam_os/config/03-customisation/etc/inittab

...fig/03-customisation/etc/xdg/autostart/nexus-exam.desktop