feat: move kubernetes dir into templates to support jinja2 across all files (#831)

kubernetes/apps/kube-system/kustomization.yaml

@@ -1,10 +0,0 @@
----
-apiVersion: kustomize.config.k8s.io/v1beta1
-kind: Kustomization
-resources:
-  - ./namespace.yaml
-  - ./cilium/ks.yaml
-  - ./coredns/ks.yaml
-  - ./local-path-provisioner/ks.yaml
-  - ./metrics-server/ks.yaml
-  - ./reloader/ks.yaml