DeviceState implementation
Note: DeviceState is a basic object which we need to populate
from ConnectionContext and it has to be a input object for
DeviceContext. So this implementation has to be before
DeviceContext implementation in the chain order.
* DeviceState interface - fix getNextXid and getPortsBandwidth methods
* impl DeviceStateImpl
* impl test suite in DeviceStateImplTest
Change-Id: Iadf19754c3373b25a6a320c676118d13338a0097
Signed-off-by: Vaclav Demcak <vdemcak@cisco.com>
Signed-off-by: Martin Bobak <mbobak@cisco.com>