Movie database handler: Interface and Test cases done

Files to be reviewed: (updated links)

Interface:
https://github.com/TaviscaSolutions/blue-repo/blob/DatabaseHandler/ASP-WCF/MvcMovie/MovieService/IMovieDatabase.cs

Movie database class:
https://github.com/TaviscaSolutions/blue-repo/blob/DatabaseHandler/ASP-WCF/MvcMovie/MovieService/DictionaryBasedMovieDatabase.cs

Test cases for movie database class:
https://github.com/TaviscaSolutions/blue-repo/blob/DatabaseHandler/ASP-WCF/MvcMovie/MovieFixtures/MovieDatabaseFixture.cs