Functional/UI Spec for Moving Java DB Actions to DB Explorer Under Services Tab

Tracked by Issue 123351

Currently Java DB gets top billing by having its actions as the first action under Tools. A more appropriate place for this is withing the DB Explorer in the Services tab.

Services
    Databases
        Java DB
             -----------------------
             | Settings...          |
             | Start Server         |
             | Stop Server          |
             | Create Database...   |
             ------------------------
        Drivers
        jdbc:derby://localhost/sample [sample on APP]

All the actions behave exactly the same as before, except that "Start Database" and "Stop Database" are changed to "Start Network Server" and "Stop Network Server" and that the node is name "Java DB", not "Java DB Database," which is redundant.