The developer building $200 million-plus worth of apartments, retail space and parking garages around Dunkin’ Donuts Park in Hartford says he remains on the hunt for a grocery operator to commit to a store at the Downtown North development now known as North Crossing. RMS CEO Randy Salvatore, leader of the Stamford firm the city chose as its development partner for a handful of key parcels surrounding the minor league ballpark that debuted in 2017, told a city council committee Wednesday evening that he may switch up the planned location for the grocery store in order to accommodate feedback and concerns expressed by grocery operators he’s talked to in recent months.