At last, it felt like summer at Fenway Park again. Not because of the weather, which included 80 degrees at first pitch. More because of the noises made by the home crowd reacting to things the home team did. For one of the rare times in recent weeks, the Red Sox had nine innings of pure fun at Fenway Park, making it look like the homefield advantage it should be while rolling to an 8-1 victory over the Orioles on Wednesday night. All nine starting position players had at least one hit, led by three each from Willson Contreras and Ceddanne Rafaela. The moans and groans that had come from 12 home losses in the previous 15 games were replaced by loud cheers from the sold-out crowd of 36,872. “Much needed, especially at Fenway Park,” said Contreras. “I see a lot of people talking \[expletive\