ztunnel: add daemonset controller
Add a controller in Cilium's operator to (re)deploy an opinionated ztunnel instance which integrates with Cilium.
The daemonset details are embedded directly into Cilium and read from memory when applying the manifest to kubernetes.
The manifest is opinionated and installs ztunnel with the necessary configuration, environment variables, and volume mounts required to integrate with Cilium successfully.
ztunnel: add ztunnel daemonset controller