Add test all script

Author: gino-m

package.json

@@ -5,6 +5,7 @@
   "scripts": {
     "clean": "nx run-many -t clean --exclude=root",
     "lint": "nx run-many -t lint --exclude=root",
+    "test": "nx run-many -t test --exclude=root",
     "export:local": "firebase emulators:export data/local --project demo-local --only firestore",
     "start-and-export:test": "firebase emulators:exec 'npm run watch:local' --project demo-local --ui --config firebase.local.json --import data/test --export-on-exit data/test",
     "test:e2e:create": "WAIT_ON_INTERVAL=30000 start-server-and-test start-and-export:test '5000|http://localhost:4000/firestore' 'npm run test:create --prefix=e2e-tests'",