Class to ServiceContract-Interface

I would like the plugin to be able to automatically extract an interface from a class and then decorate the interface with a full [ServiceContract] definition. Two parts of this are already implemented; refactoring a class to an interface is available (either in VS15, ReSharper or one of the plug-ins) and EggBlox already allows automatically creating DataContracts for a class.

Most WCF contracts are defined in interfaces, so it's only logical to take it from a class and just the DataContract one step further to a fully decorated WCF-ready interface.