SWITCHYARD-1248 Support SSL/TLS for Netty bindings.

Credentials extractor for SSLSession.
SWITCHYARD-705: Allow port configuration to be overloaded via system/test property
SWITCHYARD-1290 Doc-lit unwrapping is incompatible with JAXB unmarshaling
SWITCHYARD-1270 - Move BAtoString transformer from component/hq to core
SWITCHYARD-1299 propagate namespace declarations through merge scanner