Added 'TMDbMovie' class

The existing was renamed to TMDbMovieDetails. TMDbMovie is going to hold
general information about a particular movie, while the TMDbMovieDetails
will hold all the available data about a specific movie.
Added getMovieList method

A method that given a String returns  list of TMDbMovie objects. Also
added exception catching in TMDbMovieDetails method and fixed the
request URI.
I messed up and recreated the project