v0.8.3 Transfers updates and financial graphs

This version brings a lot of new features to the transfer logic of the game. Players can now be loaned to other teams for the rest of the season. It is now also easier to sell players, by setting their transfer state to "For sell". Additionally a player has now also team role, that affects transfers and morality. Current team roles are: key player, rotation player, reserve, future star and youth…