Adds Shortcut and Four Fingers (#95)

* adds shortcut joker

* adds Four Fingers joker, and combination support for Four Fingers + Shortcut

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Co-authored-by: MeirGavish <meir.gavish@gmail.com>
Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

include/game.h

@@ -118,4 +118,8 @@ int get_money(void);
 int get_game_speed(void);
 void set_game_speed(int new_game_speed);
 
-#endif // GAME_H
+// joker specific functions
+bool is_shortcut_joker_active(void);
+int get_straight_and_flush_size(void);
+
+#endif // GAME_H