updated the sample shell scripts for using the cgt 7.2.4 for boot loader examples
drwxr-xr-x - boot_loader
drwxr-xr-x - bttbl2hfile
drwxr-xr-x - factory_images
drwxr-xr-x - hfile2array
drwxr-xr-x - post
drwxr-xr-x - writer