Authentication to southbound

Authentication to southbound

- move authentication from implementation to southbound bundle
- copy of AuthenticationKeyDataListener also in southbound (duplicite code)
  maybe it would be suitable extract it to common bundle
- move code for validation of authentication data to southbound from
  mapping system
- if map register message contains more than 1 record checks whether
  every authentication key related with eid is the same (if no throw away
  message and log warning)
- removing authentication (setter, getter, constructor parameter) from
  implementation bundle

Change-Id: Ib5261a992a5a3b3cba9715ba5b23307d73e325dc
Signed-off-by: Jozef Gloncak <jgloncak@cisco.com>