Created a new module, deck.h
Created a new module, game.h
Created a new mdoule, player.h
Created a new module, round.h
Created a new module, hand.h
Created a new module, constants.h
Created a new module, errors.h
Created a new module, deck.c
Created a new module, game.c
Created a new module, hand.c
Created a new module, player.c
Created a new module, round.c
Added the structures Card and Deck.
Fixed two mistakes to declaring of the structures Card and Deck. Included constants.h.
Added the structure Player.
Added the structure Hand.
Added the structure Round.
Added the structure Game.
Fixed a mistake from the declaration of the structure Round. Added more documentation for the structure Round.
Fixed a small mistake from the documentation of the structure Game.