New England is bursting at the seams with great art. Museum collections across the region are studded with surprises, hosting an extraordinary range of work. That’s the focus of “Frame by Frame,†the popular column from Pulitzer Prize-winning Boston Globe art critic Sebastian Smee. Now “Frame by Frame†is available as a unique e-book, offering an up-close look at dozens of individual works that show what makes this part of the world so stimulating for art lovers.