Refactor complete album metadata

[josdem]

As user, I want to refactor complete album metadata logic so that I can improve complete MusicBrainz implementation

Acceptance Criteria

• CompleteController in its method completeAlbumMetadata should have three calls
  • Asks to MusicBrainzCompleteServiceAdapter if we can complete
  • Asks to MusicBrainzService to complete album by name, set year and cover art
  • Asks to MusicBrainzCompleteServiceAdapter if it is something new
• Return to the GUI the action result accordingly
• All tests passing