Work on refactoring measurements out of Lesion Tracker package

- Removed AssociatedStudies Collection
- Measurement API is generated from configuration files
- Data exchange methods are defined in configuration

Packages/ohif-viewerbase/client/components/viewer/displaySetNavigation/displaySetNavigation.js

@@ -0,0 +1,27 @@
+import { OHIF } from 'meteor/ohif:core';
+import { Template } from 'meteor/templating';
+
+Template.displaySetNavigation.events({
+    'click .js-next'(event, instance) {
+        if ($(event.currentTarget).hasClass('disabled')) {
+            return;
+        }
+
+        OHIF.viewer.moveDisplaySets(true);
+    },
+
+    'click .js-prev'(event, instance) {
+        if ($(event.currentTarget).hasClass('disabled')) {
+            return;
+        }
+
+        OHIF.viewer.moveDisplaySets(false);
+    }
+});
+
+Template.displaySetNavigation.helpers({
+    disableButton(isNext) {
+        Session.get('LayoutManagerUpdated');
+        return !OHIF.viewer.canMoveDisplaySets(isNext);
+    }
+});