drools-camel support for session-scoped knowledge session

The Spring configuration for drools-camel allows creation of either a stateless knowledge session (i.e. effectively request-scoped), or a single stateful knowledge session which is shared by all requests (i.e. effectively application-scoped). There is no session-scoped option.

This differs from the earlier drools-execution-server module (version 0.0.4) which was replaced by drools-camel. drools-execution-server maintained a separate StatefulKnowledgeSession instance per HTTP session.

Can you please add support for a session-scoped StatefulKnowledgeSession?