By GEORGINA LITTLEJOHN Fancy footwear: Suri Cruise showed off open-toed purple flowery shoes as she and mother Katie Holmes went to see the musical Wicked on BroadwayAfter being slammed for allowing her toddler daughter to handle phallic-shaped sweets, you'd have thought Katie Holmes would be stepping up her parenting skills.But instead, she not only turned a blind eye to four-year-old Suri's