add byte grouping 3
add byte grouping 3

kedh/HexFiend,thx0701/HexFiend,thx0701/HexFiend,pandazheng/HexFiend,saulogt/HexFiend,thx0701/HexFiend,pandazheng/HexFiend,kedh/HexFiend,saulogt/HexFiend,kedh/HexFiend,thx0701/HexFiend,saulogt/HexFiend,pandazheng/HexFiend,saulogt/HexFiend,kedh/HexFiend,pandazheng/HexFiend