Added a delegate interface to RestDispatch. The implementation hides the use of RestDispatch.
Allow resource interface methods to return the result type directly.
Added a dispatch-rest-shared module so that resource interfaces can be shared between client/server.
Added testing tools for resource delegates.
Merge pull request #585 from ArcBees/cv_rest_dispatch_delegate

Added delegates to rest dispatch and ability to return result type directly from iface methods.