[ONOS-4894][ONOS-4890][ONOS-4887][ONOS-4923]extension and argument
datamodel and listener + defect fix

Change-Id: Icefe046d9848935bb6c40a6d7688feb084edd65d
25 files changed
tree: b02576c93b4d39582c5912008d5e88e962d032ce
  1. datamodel/
  2. plugin/
  3. pom.xml