Default behavior for 'module(id, name)' notation without configuration block

This notation is not useful right now as the resulting module descriptor is now empty. Since the `exportAllPackages` and `requireAllDefinedDependencies` features are now stable, the new default should be:

```
module("group:artifact", "module.name")
````

...is the same as:

```
module("group:artifact", "module.name") {
  exportAllPackages()
  requireAllDefinedDependencies()
}
```