Echo and ByteBuff Return Added

Signed-off-by: Brent Salisbury <brent.salisbury@gmail.com>
Added bootstrap for set-manager initializations

ovs-vsctl set-manager tcp:172.16.58.1
will cause OVS to start sending echo at the controller.

JSON deserialization will still fail on echo methods. Going to add it to the root next.

Signed-off-by: Brent Salisbury <brent.salisbury@gmail.com>
Added "manager_options" to manager and ovstable

Still throwing errors on replies from monitor containing echoes. We need to at least delimitate on the ID to mark the beginning of a new JsonNode object. Maybe lol.

Signed-off-by: Brent Salisbury <brent.salisbury@gmail.com>