Adding skeletons for Melds (Run and Set), the Contract requirements,
IPlayer interface, visitor to detect wild cards in a given hand. And the
first steps of the Game Engine- TelefunkenRound
Removing SetMeld and RunMeld, replacing with Meld and going to use
composition there. There are only 2 types so no need for overkill with
individual, specific objects.

Added TelefunkenRound, TelefunkenGame, IPlay, and more of the skeleton
for the actual game engine