Implement create_and_upload_volume_to_image scenario for Cinder

The `create_and_upload_volume_to_image' sceanario can not be run
on the DSVM gate with the default settings because it uses 1GB
Swift backend for Glance image store.

Change-Id: I41e1b391c560c7b9156e68c640531942cc8bf34c

samples/tasks/scenarios/cinder/create-and-upload-volume-to-image.json

@@ -0,0 +1,24 @@
+{
+    "CinderVolumes.create_and_upload_volume_to_image": [
+        {
+            "args": {
+                "size": 1,
+                "force": false,
+                "container_format": "bare",
+                "disk_format": "raw",
+                "do_delete": true
+            },
+            "runner": {
+                "type": "constant",
+                "times": 3,
+                "concurrency": 2
+            },
+            "context": {
+                "users": {
+                    "tenants": 2,
+                    "users_per_tenant": 2
+                }
+            }
+        }
+    ]
+}

samples/tasks/scenarios/cinder/create-and-upload-volume-to-image.yaml

@@ -0,0 +1,17 @@
+---
+  CinderVolumes.create_and_upload_volume_to_image:
+    -
+      args:
+        size: 1
+        force: false
+        container_format: "bare"
+        disk_format: "raw"
+        do_delete: true
+      runner:
+        type: "constant"
+        times: 3
+        concurrency: 2
+      context:
+        users:
+          tenants: 2
+          users_per_tenant: 2