Code Explorer should automatically add a `@Folder` annotation when modules are added.

[comintern]

I was watching @Xipooo's "Real World Demo of Using Interfaces" video and realized that we're missing a pretty big opportunity in the context menu. We can tell pretty easily what folder in the Code Explorer is right-clicked to open the context menu:

Why wouldn't we just add the @Folder("FolderThatWasRightClicked") annotation to the new module? This would make organization a lot easier as you're adding new code, and would be similar to how .NET and VS handle folders and namespaces.

[retailcoder]

Not only that - we should also add @Folder("VBAProject") in all modules without a @Folder annotation.

[daFreeMan]

Even better we could prompt for "What folder would you like that to be in?" if it a module without an @folder was clicked.