Add a CDK bundle artifacts

I'd like to add bundle artifacts, like cdk-morphlines-all, to simplify depending on the CDK. There are two use cases for this: first, to remove the requirement for java consumers to figure out what artifact a feature is in---so they can worry about it if/when it is time to care. This could also help us speed up the cdk-examples by depending on a shaded version. Second, this will simplify the process of using the libraries from other JVM languages, like jruby and jython, where maven dependency management isn't complete. Ruby does have jbundler that can handle maven dependencies, but I don't know of its equivalent in python, where package management is much more difficult.