zram-service a zram setup script

[EDX-0]

put some time and elbow grease onto getting this to a polished state, it should be a good alternative to stuff like zram-tools and other zram generators that don't even bother to do more than just be a interface to zramctl, it can work on a very reduced environment requiring only the linux sysfs and busybox for shell interpreter and utils such as awk and grep.

https://github.com/eylles/zram-service