Enable mozjpeg defaults in sample apps and turbojpeg

example.c

@@ -126,6 +126,8 @@ write_JPEG_file (char * filename, int quality)
   cinfo.image_height = image_height;
   cinfo.input_components = 3;		/* # of color components per pixel */
   cinfo.in_color_space = JCS_RGB; 	/* colorspace of input image */
+  cinfo.use_moz_defaults = TRUE;        /* use Mozilla defaults for improved compression */
+  
   /* Now use the library's routine to set default compression parameters.
    * (You must set at least cinfo.in_color_space before calling this,
    * since the defaults depend on the source color space.)