dealer.py
Created the dealer singleton class which will be used for:
- dealing cards (create deck, shuffle it and deal the cards)
- evaluating stihs properly
- counting the point score

Moved the card classes Card, TarokCard and ColourCard to the file cards.py for optimizing structure.
Still figuring out how to make the Card class a metaclass for other two classes

Deleted:
functions.py - most of it was moved to Dealer class

Working on:
-Scoring card or how to manage contracts and final scoring
-Game state machine , this one is very tricky and maybe unnecessary