[ADF-2240] fix e2e and test in demo shell (#3035)

* fix e2e and test in demo shell

* test single run demo shell conf

* fix script e2e

* fix test lint problems

* remove async from nested test

* fix pdf test

* modify url load pdf strategy test

* SimpleChange import

* pdf viewer test fix

* remove force closing

* refactor pdf viewer
-remove promise approach
-add event rendered
-add destroy worker

* increment timeout

* use proxy files

* remove require

* fix viewer component test

* remove last require

* prefer use of done for txt viewer test

demo-shell/.angular-cli.json

@@ -149,14 +149,6 @@
     {
       "project": "src/tsconfig.app.json",
       "exclude": "**/node_modules/**/*"
-    },
-    {
-      "project": "src/tsconfig.spec.json",
-      "exclude": "**/node_modules/**/*"
-    },
-    {
-      "project": "e2e/tsconfig.e2e.json",
-      "exclude": "**/node_modules/**/*"
     }
   ],
   "test": {