This method is called from the controller, that means the CompanyShuttlePlugin, to update
this components data from the model, that means the DataHolder.
This method is called by ControlPanel when the items of the shuttle combo
box shall be updated because of changings. the given entries are the new
items of the combo box.
This method is called by CompanyControlClient when the shuttle list or
the positions of the shuttles have changed and the GUI's shuttle shuttle
list table and the shuttle combo box have to be updated.
This method is called by CompanyControlClient when the shuttle stock has
changed and the GUI's stock list table and the stock combo box have to be
updated.
This method is called by ControlPanel when the items of the station combo
box shall be updated because of changings. the given entries are the new
items of the combo box.