Add mock for Sankey with circular links and right alignment

Author: adamreeve

Diff for: test/image/baselines/sankey_circular_align_right.png

@@ -0,0 +1,27 @@
+{
+    "data": [
+        {
+            "type": "sankey",
+            "node": {
+                "pad": 5,
+                "align": "right",
+                "label": ["0", "1", "2", "3", "4", "5", "6"]
+            },
+            "link": {
+                "source": [
+                    0, 0, 1, 2, 5, 4, 3
+                ],
+                "target": [
+                    5, 3, 4, 3, 0, 2, 2
+                ],
+                "value": [
+                    1, 2, 1, 1, 1, 1, 1
+                ]
+            }
+        }],
+    "layout": {
+        "title": "Sankey with circular data, aligned right",
+        "width": 800,
+        "height": 800
+    }
+}