migrate workspace for @angular/core@9.0.0-beta

Author: xidedix

package.json

@@ -16,6 +16,7 @@
   ],
   "scripts": {
     "ng": "ng",
+    "postinstall": "ngcc --properties es2015 browser module main --first-only --create-ivy-entry-points",
     "start": "ng serve",
     "build-lib": "ng build @coreui/angular --prod",
     "test": "ng test",