Instances of this class are intended to carry all data that
(after the foreseen client/server split) would be sent from
the server (game enigine) to the client (GUI) after completion
of the processing of each player action.
Set the name of the player who executed the action (as opposed to
the player who was allowed to do the action, which is the one set
in the constructor).
Constructor with the GameManager, will call super class (StockRound's) Constructor to initialize, and
and other parameters used by the Share Selling Round Class
Abstract class for rounds that cannot be subclassed for one of the
other Round subclasses because UI is switchable: in some steps,
an SR-type UI and in other steps an OR-type UI should be displayed.