Added dice code

Joseph Redmon

2015-08-13 5635523326b68a9cf604f980b3d75923d4c1f284

 src/image.c

@@ -249,6 +249,7 @@
        }
    }
    int success = stbi_write_png(buff, im.w, im.h, im.c, data, im.w*im.c);
    free(data);
    if(!success) fprintf(stderr, "Failed to write image %s\n", buff);
}