BUG-576: modified parser to handle refinement of extension instances.

If user tries to refine an instance of extension parser log this event and continue with parsing
instead of throwing an exception.

Change-Id: I6d535b124527bc5a47ef90ba72b57eccbd6c73ef
Signed-off-by: Martin Vitez <mvitez@cisco.com>
BUG-576: modified parser to handle augmentation of extension instances.

Change-Id: Ic40d5691baa57ee72953abf761dd52e1c85f66c2
Signed-off-by: Martin Vitez <mvitez@cisco.com>
Merge "BUG-576: modified parser to handle refinement of extension instances."
Merge "BUG-576: modified parser to handle augmentation of extension instances."