Samson and Delilah, by Gustav Dore, ca. 1860 (Wikipedia) By PEGGY ANN BLISS Special to The STAR The invincible strongman with the fabled strength-imparting hair will be back in Puerto Rico on Saturday, for one day. But island tenor Rafael Dávila did not have to preserve his auburn locks to be the strongest interpreter of Camille Saint-Saëns’ heroic Hebrew warrior. The French-language semi-staged production of “Samson et Dalila” by Opera de Puerto Rico has also brought one of the world’s…