By THÉRÈSE MARGOLIS Radwa Abdelaziz, wife of Egyptian Ambassador to Mexico Klaled Abdelrahaman Abdellatif Shamaa, offered a “Taste of Egypt” luncheon at their Bosques de las Lomas residence in Mexico City on Tuesday, May 25, to both commemorate Africa Day (which marks the 1963 foundation of the Organization of African Unity) and to showcase Egyptian culture. The guests, who included