we're removing 2 additional types of messaging contracts
we're removing any leftovers of rabbit and kafka support - users will need to provide their own message receiver and a message sender
without this change, if you're using some external libraries and you reference them in your DSL, those libraries need to also be used on the consumer side.
with this change, you can set the contractsToYaml property of the plugin, that will convert the contract definitions into YAML, and then generate tests and stubs. We will store the original contract definitions under the originals folder.
fixes#744
Some of the samples are more like pure integratiuon tests (I wouldn't
use them to copy code into a real app). So I put them with the other
"test" projects.
