SOUTH PORTLAND – Parts of the city are about to gain access to super-fast Internet. Biddeford-based Internet service provider, Great Works Internet (GWI), has partnered with the city to offer service that is 100 times faster than traditional broadband to certain areas of South Portland. The company is constructing the fiber-optic network, named Gigabit Main Street, and is taking advance orders for when the system goes online this winter or early spring. A company network is currently delivering onegigabit per second service in Rockport…