Add session-id to the operational datastore
Expose non-zero uint32 session-id provided by the device
in the HELLO-MESSAGE via operational datastore.
When device is disconnected null is used to indicate
a non-NETCONF entity session.
Session id can be used to retrieve session-specific info of the device.
JIRA: NETCONF-710
Change-Id: I1995e825cf32462232e164727a469a7b47d3acd0
Signed-off-by: Tibor Král <tibor.kral@pantheon.tech>
Signed-off-by: tobias.pobocik <tobias.pobocik@pantheon.tech>
Signed-off-by: Ivan Hrasko <ivan.hrasko@pantheon.tech>
Signed-off-by: Peter Suna <peter.suna@pantheon.tech>