NEW YORK — Just last season, Giorgio Armani’s secondary collection was given a new name: Armani Collezioni. And for resort-early spring, the line continues to evolve in a new, younger direction. That means lots of great denim jackets, slim chinos and flirty red numbers. The collection also strikes a more casual note than in the past with breezy skirts and slim suits with shirt jackets, all done up in luxe silk, wool and linen.