FORMAT: use jsonnet for templating

* add jsonnet templates
* rewrite all charts to jsonnet

_templates/argo_base.template

@@ -0,0 +1,27 @@
+# vim:ft=jsonnet:
+{
+	name:: error "name must be defined",
+	namespace:: $.name,
+	syncOptions:: ["CreateNamespace=true"],
+
+	apiVersion: "argoproj.io/v1alpha1",
+	kind: "Application",
+	metadata: {
+		name: $.name,
+		namespace: "argocd",
+	},
+	spec: {
+		project: "baseline",
+		destination: {
+			server: "https://kubernetes.default.svc",
+			namespace: $.namespace,
+		},
+		syncPolicy: {
+			automated: {
+				selfHeal: true,
+				prune: true,
+			},
+			syncOptions: $.syncOptions,
+		}
+	}
+}