Suggestion: add configuration {} if trying to insert resource in wrong context.

Currently "insert" ignores current context in the script pane . Ideally add-on could insert first resource surrounded by:

``` powershell
configuration EnterNameOf_Configuration
{

}
```

If that is not possible maybe a warning message ("You are adding resource in wrong context") would be good option. Of course DSC authors should know it already, but...
