Method getFreeWorkshops

src/Savegame/Base.cpp:782–785

* Return workshop space not used by a Production * @return workshop space not used by a Production */

 * @return workshop space not used by a Production
*/
int Base::getFreeWorkshops () const
{
	return getAvailableWorkshops() - getUsedWorkshops();
}

/**
 * Return psilab space not in use