Solar developer SunEdison Inc. on Monday said it planned to take steps to optimize its business operations and accelerate cash flow, actions that will include layoffs, according to an internal company memo. SunEdison, which has been making multimillion-dollar investments and taking a hit in the stock market, said in release Monday that it will focus on markets with high profit potential, such as the U.S., India, China and Latin America; and “rationalize” purchased services to cut costs and get…