The interface class that the Custom Component must implment to be used in Flow Editor.
If useDefaultDeploy is true:
Users can implement SetComponentURI to supply component URI.
if useDefaultWSDLGenerator=false,
Users can implement SetComponentProperies to selectively decide which properties
go to the WSDL config tag.
The IWizardPage interface is used to model a wizard page for a custom component
The first wizard page in consumer role needs to include the defaultMEP property.