Please integrate MD5SUM into ISO files

[Alexey Eromenko <al4321@gmail.com>]

Hello,

One thing that I consider very useful -- is the addition of MD5sum
into the ISO image itself.

Thankfully Debian already has the tools to do this:
"implantisomd5 mydata.iso"
and
"checkisomd5 -v mydata.iso"

This is very handy to check multiple ISOs quickly without resorting to
an external file like "isos.md5", especially when I copy the ISOs from
one Hard Disk to the next, and may forget the accompanying .md5 file.

This idea comes from Red Hat, but it is universally convenient to use
on any ISO files.
-- 
-Alexey Eromenko "Technologov"