Added magnify, window by region, and arrow annotation tools

Packages/viewerbase/components/viewer/toolbar/toolbar.js

@@ -8,6 +8,27 @@ function getDefaultButtonData() {
         iconClasses: 'fa fa-sun-o'
     });
 
+    buttonData.push({
+        id: 'wwwcRegion',
+        title: 'Window by Region',
+        classes: 'imageViewerTool',
+        iconClasses: 'fa fa-square'
+    });
+
+    buttonData.push({
+        id: 'magnify',
+        title: 'Magnify',
+        classes: 'imageViewerTool',
+        iconClasses: 'fa fa-circle'
+    });
+
+    buttonData.push({
+        id: 'annotate',
+        title: 'Annotation',
+        classes: 'imageViewerTool',
+        iconClasses: 'fa fa-arrows-h'
+    });
+
     buttonData.push({
         id: 'invert',
         title: 'Invert',