LT-253: Creating select2 component

Packages/ohif-core/package.js

@@ -10,6 +10,11 @@ Package.onUse(function(api) {
     api.use('ecmascript');
     api.use('standard-app-packages');
     api.use('jquery');
+    api.use('underscore');
+    api.use('templating');
+    api.use('reactive-var');
+
+    api.use('natestrauser:select2@4.0.1', 'client');
 
     api.mainModule('main.js', 'client');
 });