Store extra information about a service version

[mislavcimpersak]

Some services have extra info that might be useful to store as well.

For instance, a single entry for AWS ElastiCache Memcached has:

{'Engine': 'memcached',
  'EngineVersion': '1.4.24',
  'CacheParameterGroupFamily': 'memcached1.4',
  'CacheEngineDescription': 'memcached',
  'CacheEngineVersionDescription': 'memcached version 1.4.24'},

AWS Kafka has active/deprecated status:

{'Version': '2.1.0', 'Status': 'DEPRECATED'},