We need to enhance cluster network operator to automate the whole SDN live-migration.

• New API will be introduced to CNO to facilitate the migration
• CNO shall be able to deploy OVN-K and SDN in 'migration mode'
• CNO shall be able to annotate nodes to bypassing the IP allocation of OVN-K, when MCO is updating the MachineConfig of nodes
• CNO shall be able to redeploy the OVN-K and SDN in 'regular mode' after the migration is done.