LT-22: Bi-directional tool (work-in-progress)

LesionTracker/client/components/viewerMain/viewerMain.js

@@ -67,6 +67,14 @@ Template.viewerMain.helpers({
             iconClasses: 'fa fa-eye'
         });
 
+        buttonData.push({
+            id: 'biDirectional',
+            title: 'Bi-Directional Tool',
+            classes: 'imageViewerTool',
+            iconClasses: 'fa fa-arrows-alt'
+        });
+
+
         toolbarOptions.buttonData = buttonData;
         toolbarOptions.includePlayClipButton = false;
         toolbarOptions.includeLayoutButton = false;