add auto init/unseal for vault

.gitignore

@@ -3,5 +3,5 @@
 *.env
 *artifacts*
 *k8s-admin*
-*vault-keys.json*
+vault-keys.json
 *config.yaml*

pkg/resources/templates/secrets-storage/vault-keys.json.tmpl

@@ -0,0 +1,8 @@
+{
+  "keys": [
+    {{- range $index, $key := .Modules.SecretsStorage.UnsealKeys }}
+     "{{ $key }}",
+    {{- end }}
+  ],
+  "root_token": "{{ .Modules.SecretsStorage.RootToken }}"
+}