S PRINGFIELD, Ill. — Flags engender such loyalty and pride, they often become very personal emblems with quirky or quaint nicknames: Old Glory, Union Jack, Maple Leaf — or SOB. That would be (state) “Seal on a Bedsheet,” the derisive moniker with which some have burdened the Illinois state flag, a gleaming white banner emblazoned with the state's bald eagle-themed emblem. Some forward-looking lawmakers set up a contest to  design a new flag  and put it to a vote. In a landslide, a winner was