Create cluster wide NetPols

[crutonjohn]

• https://docs.cilium.io/en/stable/security/
• https://github.com/JJGadgets/Biohazard/blob/67754007ccb77c184161a4bb2749badf5ebd976b/kube/deploy/core/_networking/cilium/netpols/ (thanks @JJGadgets )