- introduced netconf ssh wrapper bundle

- incorporation of Tomas's notes
- CRLF removed
- introduced KeyStoreHandler for providing server keys
- netconf server connection is created when subsystem 'netconf' received
- data forwarding to netconf server on requestShell
- netconfClientSession exposes channel
- removed star imports in SocketThread
- integration tests for netconf SSH
- introduced SSHChannelInboudnHandler which forwards data from pipeline to SSH serer session
- resolved dependencies
- tests changed due netconf client sending hello message on session create, added netconf-it to main pom.xml
- added logging for integration tests

Change-Id: I357a7118f2a34c445b0ce8cc9cbe4a7eff27a3a9
Signed-off-by: Martin Bobak <mbobak@cisco.com>