v1.1.5 Config improvements: can control whether the balanced connector tries to define the stream/consumer (enabled by default, can be adjusted)

Balanced:

• Adds new "nats.js.define-consumer" config parameter (defaults to true) which means the connector will not try to create the stream consumer
• "nats.js.define-stream" config parameter now defaults to true

Partitioned:

• no change (as it already assumes the streams/consumers are defined administratively)