A decade after Superstorm Sandy reduced their coastal oasis to rubble, residents of the former bungalow community of Camp Osborn — located on the barrier island between Mantoloking and Normandy Beach — are one step closer to returning home as construction begins on their new oceanside residences. Barnegat-based developer, Walters Homes, held a groundbreaking Saturday at the long-vacant site in South Mantoloking, an area of Brick Township, for the future Osborn Dunes residential community, signifying the end of a long and painful battle to rebuild. “Hopefully new traditions are started and fami…