BitStream: implement getBitsNoFill() in terms of peekBitsNoFill()+skipBitsNoFill()
BitStream: implement getBitsNoFill() in terms of peekBitsNoFill()+skipBitsNoFill()

LebedevRI/rawspeed,LebedevRI/rawspeed,darktable-org/rawspeed,LebedevRI/rawspeed,darktable-org/rawspeed,LebedevRI/rawspeed,darktable-org/rawspeed,darktable-org/rawspeed,LebedevRI/rawspeed,darktable-org/rawspeed