The results of Guy Bedford's help

Egroupware will load into addressbook & show rows
Most base files should be bundled server-side & included
rollup.config.js controls the process

Still needs work:
- consider /dist directory for best-practice
- cleanup
- other built-in apps
- EPL / external apps need Guy's multi-stage work

api/js/etemplate/et2_widget_selectbox.ts

@@ -18,6 +18,8 @@
 	et2_core_inputWidget;
 */
 
+import "../../../vendor/bower-asset/jquery/dist/jquery.min.js";
+import "../jquery/chosen/chosen.jquery.js";
 import {et2_no_init} from "./et2_core_common";
 import {ClassWithAttributes} from "./et2_core_inheritance";
 import {et2_register_widget, et2_widget, WidgetConfig} from "./et2_core_widget";