GetAt via annotation

[pauxus]

Provide an annotation for the "main" children of a model class. The main children must be a map which can be directly accessed via getAt ([]) or properties access:

@DSL class Home {
  @DirectChildren
  Map<String, Room> rooms
}

should allow a syntax like

home['Living-Room']
home.LivingRoom

[pauxus]

This could even extend to unbounded collection factory methods:

home {
  livingRoom {...}
}

where any unknown method calls on an RW instance are directed to factory methods of the DirectChildren collection.