[live-build] Add data partition to a livecd on Windows

[cagnulein <cagnulein@gmail.com>]

I think this is something to investigate  http://robertoviola.cloud/2020/03/18/add-a-data-partition-to-a-live-usb-iso/

What do you think?

I don't understand why the first partition has 0x00 as partition type.

Thanks

Roberto