Users being able to install Image Mode RHEL alongside an existing RHEL setup, on a different partition/block device and be able to dual boot.
Acceptance criteria
Both the package mode RHEL and Image Mode RHEL can boot properly
Image mode RHEL update/rollback/switch entries are correctly reflected on the bootloader
(ideally) bootc install-to-filesystem installs the system on a dedicated partition/block device and takes care of configuring the boot options to dual boot.