new line segment intersector for streamline geom, now getting proper normal and distance
new line segment intersector for streamline geom, now getting proper normal and distance

ospray/OSPRay,MengjiaoH/ospray,Twinklebear/OSPRay,MengjiaoH/ospray,Twinklebear/OSPRay,ospray/OSPRay,MengjiaoH/ospray,favreau/OSPRay,Twinklebear/OSPRay,MengjiaoH/ospray,wilsonCernWq/ospray,ospray/OSPRay,favreau/OSPRay,ospray/OSPRay,favreau/OSPRay,favreau/OSPRay,wilsonCernWq/ospray,wilsonCernWq/ospray,MengjiaoH/ospray,Twinklebear/OSPRay