mbari-media-management/annosaurus: annosaurus 0.6.3

Added support for message publishing when an Association is created or updated. ZeroMq subscribers will see a message like:

{
  "observation_uuid": "e7bcf8d6-880e-4ead-3763-7b3185e7a51e",
  "link_name": "eating",
  "to_concept": "Pandalus platyceros",
  "link_value": "nil",
  "mime_type": "text/plain",
  "object_type": "Association"
}