reorganize packages, start converting overall app to react (very broken at the moment)

Packages/ohif-viewerbase/client/lib/updateMetaDataManager.js

@@ -1,4 +1,4 @@
-import { _ } from 'meteor/underscore';
+import _ from 'underscore';
 import { getWADORSImageId } from './getWADORSImageId';
 import { WadoRsMetaDataBuilder } from './classes/metadata/WadoRsMetaDataBuilder';