Combine withTemplate and apply

[pauxus]

i.e.

def heatedRoom = ...
def unheatedRoom = ...


       bedroom(heatedRoom) {
       }
       storage(unheatedRoom) {
       }

so bedroom(heatedRoom) {} is basically a nice shortcut for bedroom(copyFrom: heatedRoom) {}.

• should this be only present in collection factories and factory?
  • this would reduce clutter, but severely hamper the usefulness in Layer3
• Since this does not include a specific type, type could be derived from the actual type (does this make sense?):
  • if template is a synthetic template class, its original class must be used
  • if template is a super class of the expected class, the expected class should be used