A plan for a luxury skyscraper with a so-called “poor door” is changing to extend more of a welcome to residents of its cluster of affordable apartments, officials and the developers said Friday. The retooled plan for 1 West End Ave. still involves separate entrances, but all residents will now have access to such building amenities as a courtyard and river-view roof deck, and the affordable segment’s lobby will be stylishly appointed and set facing a park. […] … (S)ome residents and officials see the divisions as discriminatory, and Mayor Bill de Blasio’s administration has said it aims to bar...