Option to make ADB configuration optional.

[CBatemanOracle]

Spring Boot apps are often iteratively, especially when new developers are just starting. It would be good if we could support just what's need by the most basic app spit out by the initializer application. This is just a single endpoint "hello" REST application but requires no database. Forcing the user to create or provide an ADB hurt nothing (unless the don't have quota for it) but it does add an extra step to an already long set of steps. Particularly if there app, or the current iteration at least, doesn't require a DB.