Autoscaling in TOSCA VNF template

[ThomasBri]

It was not possible to specify the autoscaling policies in CSAR VNFPackages like this:

inputs:
  auto_scale_policy:
    scale-out:                  # Policy name 
      threshold: 100.0
      comparisonOperator: ">="
      period: 30
      ...

One of the problems was that the VNFAutoscaling object does not match the yaml representation so the Yaml parser was not able to map it.