A plan to restore and reopen Paterson’s historic Hinchliffe Stadium is now within reach, as the project moves ahead under a team led by a hometown developer, in an effort that will also honor the site’s history as a Negro League baseball stadium. The mixed-use project could even become a focal point for redevelopment in Paterson, which has lagged behind other large New Jersey cities that have seen high-profile, public-private revitalization efforts.