By Anthony Deutsch and Thomas Escritt AMSTERDAM (Reuters) – Philips, the Dutch conglomerate that started life making light bulbs 123 years ago, is splitting off its lighting business in a bold step to expand its higher-margin healthcare and consumer divisions. Putting the lighting business in a separate company is part of a wider strategy that began with Philips’ move out of less profitable consumer electronics and into fast-growing healthcare markets, largely in emerging Asian markets. …