parse kubelet checkpoint file for pod devices

Enabling kubelete checkpoint file  parsing to get Pod device info
so that these device information can be passed into CNI plugins
that need specific device information to work on.

Change-Id: I6630f56adc0a8307f575fc09ce9090c1ffca0337

types/types.go

@@ -131,3 +131,9 @@ type K8sArgs struct {
 	K8S_POD_NAMESPACE          types.UnmarshallableString
 	K8S_POD_INFRA_CONTAINER_ID types.UnmarshallableString
 }
+
+// ResourceInfo is struct to hold Pod device allocation information
+type ResourceInfo struct {
+	Index     int
+	DeviceIDs []string
+}