Add selector to filter docs to be deplyed to k8s

By default every document is to be deployed to kubernetes however
some documents may need to be skipped, because they serve only
informational purposes and have no consumers in kubernetes cluster

Change-Id: If2ea5659acb319c15cf3f55e9f3d9e86dc647e9f
Relates-To: #130
Closes: #130

manifests/function/ephemeral/baremetal.yaml

@@ -1,6 +1,8 @@
 apiVersion: metal3.io/v1alpha1
 kind: BareMetalHost
 metadata:
+  annotations:
+    config.kubernetes.io/local-config: "true"
   labels:
     airshipit.org/ephemeral-node: "true"
   name: master-0

manifests/function/ephemeral/secret.yaml

@@ -1,6 +1,8 @@
 apiVersion: v1
 kind: Secret
 metadata:
+  annotations:
+    config.kubernetes.io/local-config: "true"
   labels:
     airshipit.org/ephemeral-user-data: "true"
   name: node1-bmc-secret
@@ -115,6 +117,8 @@ stringData:
 apiVersion: v1
 kind: Secret
 metadata:
+  annotations:
+    config.kubernetes.io/local-config: "true"
   name: ephemeral-network-data
   namespace: default
 type: Opaque