To toss in a chaise lounge is one of the easiest ways to add an air of old-world sophistication to any given space — plain and simple.  These ladylike recliners from eras gone by are at once elegant and easy, inviting guests to sit down and relax — but perhaps maintain their posture as they do so.  In a mix of finishes, sizes, styles and upholstery, today’s roundup features everything from a classic, tufted display of grandeur to an updated, streamlined version more indicative of current tastes.  Whether the surrounding decor is traditional, transitional or uber-contemporary, there’s something in this roundup that can, put plainly, class up the joint in a jiffy.