feat: export drag+drop and resizable modules for use in custom templates

Fixes #419

Author: Matt Lewis

src/modules/day/calendar-day.module.ts

@@ -24,6 +24,8 @@ export { CalendarDayViewComponent } from './calendar-day-view.component';
     CalendarDayViewEventComponent
   ],
   exports: [
+    ResizableModule,
+    DragAndDropModule,
     CalendarDayViewComponent,
     CalendarAllDayEventComponent,
     CalendarDayViewHourSegmentComponent,

src/modules/month/calendar-month.module.ts

@@ -19,6 +19,7 @@ export { MonthViewDay as CalendarMonthViewDay } from 'calendar-utils';
     CalendarMonthViewHeaderComponent
   ],
   exports: [
+    DragAndDropModule,
     CalendarMonthViewComponent,
     CalendarMonthCellComponent,
     CalendarOpenDayEventsComponent,

src/modules/week/calendar-week.module.ts

@@ -27,6 +27,8 @@ export {
     CalendarWeekViewEventComponent
   ],
   exports: [
+    ResizableModule,
+    DragAndDropModule,
     CalendarWeekViewComponent,
     CalendarWeekViewHeaderComponent,
     CalendarWeekViewEventComponent