Motivation:

To fullfill the service metadata description defined by the
cloud management board, new properties need to be added to
the market-service entity.

Modification:

- add lombok dependency to the cerebrum project to avoid some
    boilterplate codes
- add some few new properties to the market-service entity
- enable database auditing to keep track of when an entity was
    created and when it was last modified.
- adjust the MarketServiceRepository to fit the new market-service
    properties definition

Result:

Market-service entity contain some new properties and some few name
change.

Target: master