Issue 32 proper refactor

[urmichm]

No description provided.

[urmichm]

Diana class to be removed

[urmichm]

In a separate issue, think of adding a common class for :

• TextSearchContainer
• NearbySearchContainer
• FindPlaceContainer

All containers have:

• htmlAttributions (except FindPlaceContainer, but could be made nullable)
• results ( aka candidates in FindPlaceContainer, but we can use @JSON(name="candidates") to overcome this)
• status
• errorMessage
• infoMessages
• nextPageToken (except FindPlaceContainer, but could be made nullable)

A single container class would make it possible to make an abstract class with abstract call() method for all PlaceSearch classes