For 35 years, Reisenbach Philanthropies has been focused on one central mission: Find ways improve safety and the quality of life for New Yorkers. The nonprofit organization, which will host its annual fundraiser on Nov. 19 at the Lighthouse at Chelsea Piers, went through a big shift two years ago when it moved from making direct grants to other organizations to an incubator model. Now Reisenbach provides resources, talent and perhaps most important, encouragement to a range of nonprofits with