NEW YORK ZONING AGAINST SEX SHOPS IS UPHELD AS FAIR
New York State Supreme Court Justice Marilyn G Diamond, in strongly worded opinion, upholds new zoning ordinance in New York City aimed at restricting X-rated businesses; denies request from store owners to block law; rules law is constitutional since it does not restrict free speech and is intended to improve city's quality of life; says it provides more than enough alternative sites for existing sex-related businesses; store owners plan appeal; ruling clears way for city to begin shutdown of estimated 150 peep shows, topless bars and X-rated video parlors it says will be in violation of law; map (M)