[Plot] Add skeleton specs

Add skeleton specs for remaining plot scripts.
WTD-533.

platform/features/plot/test/elements/PlotFormatterSpec.js

@@ -0,0 +1,14 @@
+/*global define,Promise,describe,it,expect,beforeEach,waitsFor,jasmine*/
+
+/**
+ * MergeModelsSpec. Created by vwoeltje on 11/6/14.
+ */
+define(
+    ["../../src/elements/PlotFormatter"],
+    function (PlotFormatter) {
+        "use strict";
+
+        describe("The plot formatter", function () {
+        });
+    }
+);