By Keith Doucette Halifax (CP)-A restored replica of the square-rigged sailing ship that sparked a wave of Scottish immigration to Nova Scotia more than 250 years ago was relaunched Saturday with a mighty splash into Pictou harbour. After a restoration and public fundraising effort that began in 2019, the rebuilt hull of the Hector was eased into the water sideways during a colourful ceremony on the town’s scenic waterfront. During the launch, the vessel was guided down seven ramps, known as launchways, after supporting wedges were removed — a process master shipbuilder Vern Shea described as a sight to see. “It’s kind of nerve-wracking,” Shea said in a recent interview. “I’ve witnessed quite a few launches in my career, and you always get the hair on the back of your…