Streets around the world bear his name, a depression era hero with an enormous heart, who was ahead of the field. Phar Lap, the legendary race horse, will be celebrated in his home town of Timaru next week on the 100th anniversary of his birth. After winning 37 races, Phar Lap died suddenly in the US in 1932. Nearly 100 years on debate continues over whether Phar Lap was intentionally poisoned. Secretary and racing manager at the South Canterbur…