Restructure the application-client quickstart

At the moment the EJB is being deployed to the server but it is also in the ear used to invoke appclient.xml so gets deployed on the client as well.

As the intent of this quickstart is to illustrate an appclient invoking an EJB on a separate process I think it would be clearer if the server side process only contained the EJB and the client side process only contained the client itself plus any dependencies.