cilium.io/v2: Add CiliumNode type definition
cilium.io/v2: Add CiliumNode type definition

The CiliumNode custom resource is used to represent Cilium specific per node
configuration and status.

As a first use case, the CiliumNode custom resource is used to establish
communication between agents and the operator to allocate ENI IPs.

Signed-off-by: Thomas Graf <5f50a84c1fa3bcff146405017f36aec1a10a9e38@cilium.io>

cilium/cilium,tklauser/cilium,tgraf/cilium,tklauser/cilium,tgraf/cilium,tgraf/cilium,tgraf/cilium,cilium-team/cilium,michi-covalent/cilium,tklauser/cilium,tklauser/cilium,michi-covalent/cilium,cilium/cilium,cilium/cilium,michi-covalent/cilium,tgraf/cilium,tklauser/cilium,tgraf/cilium,michi-covalent/cilium,cilium-team/cilium,cilium/cilium,michi-covalent/cilium,cilium/cilium