Handle sudo requirements for virt-v2v

[dann1]

Running virt-v2v on ubuntu2404 as a non root user yields the error

DEBUG INFO: libguestfs error: /usr/bin/supermin exited with error status 1

An easy way to avoid this is to run oneswap as root. This being said, oneswap is a wrapper that issues API Calls to both vCenter and OpenNebula with an in between operation with virt-v2v. Only running virt-v2v as root is necessary.

The goal is to

• Within oneswap, verify the OS and append sudo to the execution of virt-v2v based on the OS.
• On OpenNebula 7.0+, oneswap is distributed as a package called opennebula-swap. Handle the sudoers file to include virt-v2v support.
• Mention this nuance on the documentation (wiki or one docs)