Updated RESTCONF implementation
- Restconf implementation now implements new SAL readign contracts
in form of <String,CompositeNode> where String is Restconf version
of instance identifier.
Translation of Restconf InstanceIdentifier into Binding-Independent
Restconf Instance-Identifier is done by ControllerContext class
which implements stateful translation of identifier based on schema
context.
After translation of instence-identifier most of actions maps
directly to Binding-Independent APIs.
Change-Id: I248470e282826a3f04f6e99f54aae8fd14ea2eb3
Signed-off-by: Tony Tkacik <ttkacik@cisco.com>