PUBLISHED IN THE HAMILTON SPECTATOR TUESDAY, FEBRUARY 10 , 1998, ADVANCING ST. CATHARINES GENERAL HOSPITAL FOUNDATION BENEFIT CONCERT ON FEBRUARY 15       NICK KREWEN     TORONTO:   Bryan Adams has decided to unofficially extend Valentine’s Day by 24 hours. His generous gift to supermodel pal Linda Evangelista and the women of the Niagara Region is a benefit concert this Sunday at the Jack Gatecliff Memorial Arena in…