Petals Studio

There are two usages of SCA in Petals: + First, to implement a native Petals service. It is an SCA application with one service and no reference. + Second, to chain service invocations (among other things). It is an SCA composite with both services and references. The wizard should propose the creation of a new composite with 3 options: + Create an empty composite. + Create a new composite for a native Petals service. + Create a new composite to chain service invocations. In this last case, there should be an additional page to select the services to orchestrate (using the Petals Services view). For all the options, there should be an image to show what the composite will look like (approximately).