We want to efficiently store iso images, that change daily but mostly contain the same files again and we do want to re-use file CIDs so we scan the .iso for these files and chunk accordingly
This is tested on Linux
see INSTALL.md
wget http://download.opensuse.org/distribution/leap/15.2/iso/openSUSE-Leap-15.2-NET-x86_64.iso
./ipfsjigsaw.py openSUSE-Leap-15.2-NET-x86_64.iso
ipfs ls bafybeicgmnt4s5haaxyr3aay6xbtqqxh5smeq6po5u2myr3y2gqgyloetu