[Telemetry] Refactor plot to use TelemetryFormatter

Refactor plot view to use an injected telemetry formatter,
instead of explicitly including moment. WTD-599.

platform/features/plot/src/SubPlotFactory.js

@@ -0,0 +1,40 @@
+/*global define*/
+
+define(
+    ["./SubPlot"],
+    function (SubPlot) {
+        "use strict";
+
+        /**
+         * Utility factory; wraps the SubPlot constructor and adds
+         * in a reference to the telemetryFormatter, which will be
+         * used to represent telemetry values (timestamps or data
+         * values) as human-readable strings.
+         * @constructor
+         */
+        function SubPlotFactory(telemetryFormatter) {
+            return {
+                /**
+                 * Instantiate a new sub-plot.
+                 * @param {DomainObject[]} telemetryObjects the domain objects
+                 *        which will be plotted in this sub-plot
+                 * @param {PlotPanZoomStack} panZoomStack the stack of pan-zoom
+                 *        states which is applicable to this sub-plot
+                 * @returns {SubPlot} the instantiated sub-plot
+                 * @method
+                 * @memberof SubPlotFactory
+                 */
+                createSubPlot: function (telemetryObjects, panZoomStack) {
+                    return new SubPlot(
+                        telemetryObjects,
+                        panZoomStack,
+                        telemetryFormatter
+                    );
+                }
+            };
+        }
+
+        return SubPlotFactory;
+
+    }
+);