Fix majority of remaining yamllint warnings and errors

Signed-off-by: Ryan Lerch <rlerch@redhat.com>

roles/openshift-apps/asknot/files/service.yml

@@ -1,3 +1,4 @@
+---
 apiVersion: v1
 kind: Service
 metadata:
@@ -13,4 +14,3 @@ spec:
   selector:
     app: asknot
     deploymentconfig: asknot
-

roles/openshift-apps/asknot/templates/buildconfig.yml

@@ -1,3 +1,4 @@
+---
 apiVersion: build.openshift.io/v1
 kind: BuildConfig
 metadata:

roles/openshift-apps/asknot/templates/imagestream.yml

@@ -1,4 +1,5 @@
+---
 apiVersion: image.openshift.io/v1
 kind: ImageStream
 metadata:
-   name: "asknot"
+  name: "asknot"