Primitivus: Tarot card game implementation

- quick frontend: card_game added
- wix: card_game splitted with quick frontend
- tools: new game library
- primitivus: new card_game widget (not finished yet)
- primitivus: SàT XML UI management: first draft

frontends/quick_frontend/quick_app.py

@@ -297,7 +297,7 @@ class QuickApp():
             self.chat_wins[room_jid].getGame("Tarot").newGame(hand)
 
     def tarotChooseContrat(self, room_jid, xml_data, profile):
-        """Called when the player has too select his contrat"""
+        """Called when the player has to select his contrat"""
         if not self.check_profile(profile):
             return
         debug (_("Tarot: need to select a contrat"))