SWITCHYARD-1633 Netty goes bonkers when undeploying UDP bindings

Added code to call datagramChannelFactory.releaseExternalResources() for the camel netty component so that it will shutdown cleanly.
SWITCHYARD-1778: Upgrade KIE/Drools/jBPM from 6.0.0.CR3 to 6.0.0.CR5
SWITCHYARD-1771 Support remote transaction propagation via SCA binding

Integrated XTS transaction bridge in the SCA remote invocation. If the client side has an active JTA transaction and its policy allows it to be propagated, then SCA invocation propagates the transaction context with using XTS transaction bridge.