add ResticRepository CRD and move repo-level actions to a controller

Signed-off-by: Steve Kriss <steve@heptio.com>

examples/common/00-prereqs.yaml

@@ -132,6 +132,21 @@ spec:
     plural: podvolumerestores
     kind: PodVolumeRestore
 
+---
+apiVersion: apiextensions.k8s.io/v1beta1
+kind: CustomResourceDefinition
+metadata:
+  name: resticrepositories.ark.heptio.com
+  labels:
+    component: ark
+spec:
+  group: ark.heptio.com
+  version: v1
+  scope: Namespaced
+  names:
+    plural: resticrepositories
+    kind: ResticRepository
+
 ---
 apiVersion: v1
 kind: Namespace