[ONOS-5884]YANG Serializer: Implement XML serializer.

Change-Id: Idffda88938d9c6c7b7c7814127a340bd2dc35039
39 files changed
tree: 2c4bc2a6c2e0d468a7ea5dea23ac2ffa13be6990
  1. .gitignore
  2. .gitreview
  3. compiler/
  4. model/
  5. pom.xml
  6. runtime/
  7. serializers/
  8. tools/