Add help (tool or docs) for configuring the DatasetSink

The DatasetSink is currently difficult to configure because it requires the data storage modules and their dependencies. Mainly, the problem is adding hive-exec, hive-metastore, and all of the transitive dependencies cleanly.

I like the idea of adding a CLI command that will locate the dependencies and copy them into the right place in plugins.d, along with a copy of the dataset CLI jar that has all of the Kite dependencies.