added kube-prometheus-stack addon

infra/addons/kube-prometheus-stack/Chart.yaml

...-prometheus-stack/charts/kube-prometheus-stack-36.2.0.tgz

infra/addons/kube-prometheus-stack/templates/_helpers.tpl

...s/kube-prometheus-stack/templates/ingress-prometheus.yaml

...ddons/kube-prometheus-stack/templates/ingress-thanos.yaml

infra/addons/kube-prometheus-stack/values.yaml

services/kube-prometheus-stack-addons.yaml