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/studySeriesQuickSwitch/studySeriesQuickSwitch.js

@@ -0,0 +1,45 @@
+Template.studySeriesQuickSwitch.onCreated(() => {
+    const instance = Template.instance();
+
+    // Defines the study being shown in the current viewport
+    instance.data.currentStudy = new ReactiveVar();
+
+    // Gets the viewport data for the given viewport index
+    instance.getViewportData = viewportIndex => {
+        const layoutManager = window.layoutManager;
+        return layoutManager && layoutManager.viewportData && layoutManager.viewportData[viewportIndex];
+    };
+
+    // Gets the current viewport data
+    const viewportIndex = instance.data.viewportIndex;
+    const viewportData = instance.getViewportData(viewportIndex);
+    if (!viewportData) {
+        return;
+    }
+
+    // Finds the current study and return it
+    const study = ViewerStudies.findOne({
+        studyInstanceUid: viewportData.studyInstanceUid
+    });
+
+    // Change the current study to update the thumbnails
+    instance.data.currentStudy.set(study);
+});
+
+Template.studySeriesQuickSwitch.events({
+    'mouseenter .js-quick-switch, mouseenter .js-quick-switch .switchSectionSeries'(event, instance) {
+        instance.$('.quickSwitchWrapper').addClass('overlay');
+        $(event.currentTarget).addClass('hover');
+    },
+    'mouseleave .js-quick-switch'(event, instance) {
+        instance.$('.js-quick-switch, .switchSectionSeries').removeClass('hover');
+        instance.$('.quickSwitchWrapper').removeClass('overlay');
+    }
+});
+
+Template.studySeriesQuickSwitch.helpers({
+    // Get the current study
+    currentStudy() {
+        return Template.instance().data.currentStudy.get();
+    }
+});