Increasing numbers of motor and sailing yachts from around the world arrived this past year at Intermarine Savannah to take advantage of the shipyard's repair and refit facilities. Among the procession of vessels brought to Intermarine for refit and repairs was the 315-ft. M/V Limitless, one of the largest yachts in the world, which was dry docked at the shipyard for three months last year. "For years," said Intermarine Marketing Director Patta Sloan Conboy; "our exceptional facilities and service were one of the best kept secrets in the yachting world. Among the yachts scheduled for work recently at Intermarine, the 158-ft. Feadship Mi Gaea arrived in September for an extension to the sundeck…