Batch support (as a service provider)

[AndreyMarchuk]

Allows to define a batch service, create a pipeline for it and (de)register a job definition (deploy/undeploy). Tested this for a while with pipeline and batch service. Simple example included. Due to nature of batch following commands are not supported: logs, exec, restart

[mneil]

👍 thanks for the PR. Sorry for the delay in reviewing. We'll try to take a look at this soon