Bigtable Hello World application to Google App Engine Standard for Java 11.

• Install the Google Cloud SDK and run:

   gcloud init

If this is your first time creating an App engine application:

   gcloud app create

• Create a Cloud Bigtable Instance.

• Update INSTANCE_ID value in Main.java.

    mvn  appengine:deploy -Dapp.deploy.projectId=<project-id>

Cloud Bigtable Instances should be deleted when they are no longer being used as they use significant resources.