Added new method: setupPowerPlantConfigureation
	This method takes a list of info packets (presumably generated by
reading a save file) and using the info; 
	adds components to list of components, gives the new components their
info, connects the components together.
	
Added new method: clearPowerPlant
	resets component list to empty list (would be used before
setupPowerPlantComponents when loading a game.
	
Added other supplementary methods for the above methods.