Data: Census Bureau; Chart: Neil Irwin/AxiosWe don't know yet how the Iran war and the resulting surge in energy prices will ripple through the U.S. economy. We do know that American consumers were in pretty solid shape before it all began.The big picture: New retail sales and employment data out Wednesday morning point to an underlying strength in consumer demand, propped up by wages that have kept rising.The question for the months ahead is whether the underlying trends that have kept consumer...