fedora-live-base,fedora-soas: livecd-iso-to-disk in .iso filesystem.
    
    For livemedia-creator builds, inject install code into the lorax
    template live/x86.tmpl that copies the script livecd-iso-to-disk
    into the .iso filesystem at /LiveOS when livecd-tools is present in
    the install image.  This fixes commit 1fd9547, which failed in this.