When OCL is enabled at install time, the bootstrap MCO should be able to parse MOSC yamls to build the image(s) for the nodes.

• There should be 2 MOSC, one for master nodes and one for worker nodes
• If OCL is enabled in install-config.yaml but an MOSC is not provided by the user, generate a basic one for the installation
  • this can be done in the future, for now we can fail if the user doesn't create a MOSC yaml
• A registry is needed on the boostrap node to hold the image built for the master nodes
• Once master nodes are up with a base version of RHCOS, run rpm-ostree rebase or bootc switch to boot the nodes into the image that was built

Note: the bootstrap node cannot communicate with worker nodes. It will only be responsible for building and serving content for the control-plane/master nodes. While implementing, verify that this is actually the behavior of the bootstrap node.